From an SI story:
Fourth, Meyer would have had 38 million reasons to litigate a for-cause firing, and a protracted legal fight could have been very damaging to Ohio State on multiple levels. Per the terms of his employment contract, Meyer had the right to litigate a contract dispute in Franklin County, Ohio. Had he been fired, Meyer could have sued the school for breach of contract, defamation and possibly also for violating the Americans with Disabilities Act
The report also mentions that Meyer periodically takes medicine that “can negatively impair his memory, concentration, and focus.” Investigators also observed that Meyer “sometimes had significant memory issues in other situations where he had prior extensive knowledge of events.” The report suggests some of Meyer’s answers during Big Ten media day reflected not ill-intent but rather blameless health conditions. In any lawsuit over a firing, Meyer’s attorneys would have argued that the university admits medication impacts Meyer’s focus and concentration and thus perhaps played an exonerating role in his missteps. Both federal and state laws provide protections for employees with health conditions and who use medication.