Patients must not have had any clinically-significant GI bleeding within 6 months prior to registration and patients must not have a GI disorder which (at the discretion of the investigator) bears a high risk of perforation or fistula; examples of this include (but are not limited to) Crohn’s disease or tumor with transmural extension through the gastrointestinal lining Known gastrointestinal (GI) disease or GI procedures that could interfere with the oral absorption or tolerance of alisertib; examples include, but are not limited to partial gastrectomy, history of small intestine surgery, and celiac disease Major surgery to the upper gastrointestinal (GI) tract, or have a history of GI disease or other medical condition that, in the opinion of the Investigator, may interfere with oral drug absorption Unable to swallow tablets, patients with malabsorption syndrome, or any other GI disease or GI function that could interfere with absorption of study treatment History of clinically significant GI bleed, intestinal obstruction, or GI perforation within 6 months of study dose Active inflammatory gastrointestinal (GI) disease, known diverticular disease or previous gastric resection or lap band surgery including impairment of gastro intestinal function or GI disease Active gastrointestinal (GI) conditions and uncontrolled irritable bowel disease or pre-existing GI disorders that may interfere with proper absorption of the study drug Has malabsorption due to prior gastrointestinal (GI) surgery or GI disease GI condition that might limit absorption of oral agents Major surgery to the upper gastrointestinal (GI) tract, or have a history of GI disease or other medical condition that, in the opinion of the investigator may interfere with oral drug absorption. Presence of GI bleeding. Current or recent (within 6 months) significant gastrointestinal (GI) disease or condition. Presence of active gastrointestinal (GI) disease (including GI bleeding or ulceration) or other condition that could affect GI absorption (e.g. malabsorption syndrome, history of biliary tract disease), including refractory nausea or vomiting, or chronic GI disease which may affect absorption or tolerance to oral medications Impairment of gastro intestinal (GI) function or GI disease. Patients with inflammatory bowel disease and/or gastrointestinal (GI) ulcers and/or GI fistulas are eligible but only at the discretion of the study PI after personalized review of their medical history and proximity of SBRT targets to gastrointestinal mucosa Current or recent (within 6 months) significant gastrointestinal (GI) disease or condition. Patients who are unable to swallow tablets, patients with malabsorption syndrome, or any other gastrointestinal (GI) disease or GI dysfunction that could interfere with absorption of study treatment Patients unable to swallow tablets, patients with malabsorption syndrome, or any other gastrointestinal (GI) disease or GI dysfunction that could interfere with absorption of study treatment Major surgery to the upper GI tract, or have a history of GI disease or other medical condition that, in the opinion of the investigator may interfere with oral drug absorption Active gastrointestinal (GI) ulceration or hemorrhage No known gastrointestinal (GI) disease or GI procedures that could interfere with the oral absorption or tolerance of alisertib; examples include, but are not limited to partial gastrectomy, history of small intestine surgery, and celiac disease History of gastrointestinal (GI) bleed requiring transfusion Patients unable to swallow tablets, patients with malabsorption syndrome, or any other gastrointestinal (GI) disease or GI dysfunction that could interfere with absorption of study treatment Gastrointestinal (GI) bleed within 30 days prior to registration on study Active gastrointestinal (GI) hemorrhage within 2 weeks of study enrollment Active gastrointestinal (GI) bleed within 2 weeks of study enrollment Active GI ulcer disease within 4 weeks of study enrollment GI hemorrhage or obstruction experienced within the previous 6 weeks Current or recent (within 6 months) significant gastrointestinal (GI) disease or condition. Patient must not have prior gastrointestinal (GI) surgery or GI disease that might interfere with the absorption of TRC102 Has a clinically significant gastrointestinal (GI) abnormality including: Gastrointestinal (GI) condition that interferes with drug absorption Patients who have known gastrointestinal (GI) disease or GI procedures which could interfere with the oral absorption or tolerance of alisertib are not eligible; examples include (but are not limited to) partial gastrectomy, history of small intestine surgery, and celiac disease Known gastrointestinal (GI) disease or GI procedures that could interfere with the oral absorption or tolerance of alisertib; examples include, but are not limited to partial gastrectomy, history of small intestine surgery with significant removal of the small intestine, and celiac disease Any gastrointestinal (GI) disorder or liver disease History of diverticulitis, rectal bleeding or other lower gastrointestinal (GI) diseases predisposing to GI complications after radiation (will be determined by radiation oncologist) Impairment of gastrointestinal (GI) function or GI disease or active ulceration of the upper gastrointestinal tract. Gastrointestinal (GI) hemorrhage (active or in recent 6 months) Known gastrointestinal (GI) disease or GI procedures that could interfere with the oral absorption or tolerance of alisertib; examples include, but are not limited to partial gastrectomy, history of small intestine surgery, and celiac disease Presence of GI fistula Presence of active gastrointestinal (GI) disease or other condition that could affect gastrointestinal absorption (e.g. malabsorption syndrome) or predispose a subject to GI ulceration; subjects with prior Whipple procedure are eligible Refractory gastrointestinal (GI) disease that would prevent absorption of oral agents Patients who have liver function test (LFTs) (including total bilirubin, aspartate aminotransferase [AST] and alanine aminotransferase [ALT]) >= twice the upper limit of normal should be evaluated by a gastrointestinal (GI) physician unless there is a clear precipitating factor (such as an azole, methotrexate, Bactrim or another drug); if the GI physician considers that HCT on protocol 2660 is contraindicated for that patient the patient will be excluded from the protocol; patients with Gilbert’s syndrome and no other known liver function abnormality and patients with reversible drug-related transaminitis do not necessarily require GI consultation and may be included on the protocol History of previous clinically significant GI bleed in the last 6 months prior to first dose Active gastrointestinal (GI) or intracranial hemorrhage Currently active GI disease, or prior surgery that may affect ability to absorb oral medications No prior GI perforation, or GI obstruction or involvement of the bowel on imaging No known gastrointestinal (GI) pathology that would interfere with drug bioavailability Unsuccessful closure of collateral blood flows from the hepatic artery to non-targeted organs such as the gastrointestinal (GI) tract History of gastrointestinal (GI) surgery within the past 28 days; if > 28 days since GI surgery, must have confirmation of complete healing before initiating treatment with study drug History of diverticulitis, rectal bleeding or other lower gastrointestinal (GI) diseases predisposing to GI complications after radiation (will be determined by radiation oncologist) Malabsorption due to prior gastrointestinal (GI) surgery, GI disease Subjects are willing to undergo or must have had an endoscopy of the upper and/or lower GI tract and biopsy to confirm GI GVHD. Patients with poorly controlled bleeding from gastric antral vascular ectasia (GAVE) or other gastrointestinal (GI) sites Known gastrointestinal (GI) disease or GI procedures that could interfere with the oral absorption or tolerance of alisertib; examples include, but are not limited to partial gastrectomy, history of small intestine surgery, and celiac disease Major gastrointestinal (GI) disease as defined but not limited to the following: history of inflammatory bowel disease or other illness resulting in chronic diarrhea, known achlorhydria or history of GI surgery that could reduce the acidity of the stomach, acute pancreatitis or cholecystitis within 6 months prior to Baseline, or GI disease that may interfere with the absorption of orally-administered drugs. Impairment of GI function or GI disease that could interfere with the absorption of selinexor, including obstructed GI tract and uncontrolled vomiting or diarrhea. History of active peptic ulcer disease or major upper gastrointestinal (GI) bleed < 12 months; history of GI bleeding from the colorectal cancer primary is not an exclusion criterion Impaired GI function or GI disease Patients with gastrointestinal (GI) absorptive problems making it unlikely to absorb study medication or more likely to experience GI toxicities Patient must not have prior gastrointestinal (GI) surgery or GI disease that might interfere with the absorption of terameprocol Impaired GI function or GI disease that may interfere with absorption of AZD8835 or patients unable to take oral medication Recurrent nausea and/or vomiting within 14 days before the first dose of alisertib or known gastrointestinal (GI) abnormality or GI procedure that could interfere with or modify the oral absorption or tolerance of alisertib. Examples include, but are not limited to, disease-related bowel obstruction, pancreatic insufficiency, use of pancreatic enzymes, a gastric condition (such as severe reflux or active peptic ulcer disease) that requires chronic and uninterrupted use of proton pump inhibitors, partial gastrectomy, history of small intestine surgery, and celiac disease. Known active gastrointestinal (GI) bleeding. Major surgery to the upper gastrointestinal (GI) tract, or have a history of GI disease or other medical condition that, in the opinion of the investigator may interfere with oral drug absorption History of gastrointestinal (GI) hemorrhage Clinically significant gastrointestinal (GI) abnormalities that may increase the risk for GI bleeding. Presence of active gastrointestinal (GI) disease (including GI bleeding or ulceration) or other condition that could affect GI absorption) (e.g. malabsorption syndrome, history of biliary tract disease) PATIENT: Diagnosis of lung or gastrointestinal (GI) (colorectal, pancreas, liver) cancers No grade 3 or 4 gastrointestinal (GI) toxicity at time of initial screening Patients with irritable bowel syndrome, Crohn's disease, or other clinically significant gastrointestinal (GI) related condition that might confound the VEGF-TKI-related-diarrhea endpoint Participants who have had radiotherapy within 4 weeks prior to entering the study or those who have not recovered from gastrointestinal (GI) adverse events due to induction therapy; patients who have had localized radiation which would not result in any GI effects are allowed on study Participant must have a lung or gastrointestinal (GI) primary cancer diagnosed in the last 3 months History of clinically-significant gastrointestinal (GI) disease; GI perforation within 1 year; GI bleeding or acute pancreatitis within 3 months; or diverticulitis within 4 weeks of first study drug administration Medical contraindications to undergoing endoscopy or obstruction of the gastrointestinal (GI) tract that precludes passage of the endoscope History of GI ulcers, chronic GERD, or GI bleeding in the past 5 years Patients with a diverting ileostomy, with a history of inflammatory bowel disease, familial adenomatous polyposis (FAP), or active gastrointestinal (GI) symptoms (gastrointestinal bleed, diarrhea, severe abdominal pain, etc.) Acute gastrointestinal (GI) bleeding Currently active gastrointestinal (GI) disease, or prior surgery that may affect ability to absorb oral medications Major surgery to the upper gastrointestinal (GI) tract, or have a history of GI disease or other medical condition that, in the opinion of the investigator may interfere with oral drug absorption