McRaven, a former Navy SEAL, earned renown after overseeing the 2011 Special Ops raid that killed Osama bin Laden. But his fame swelled last year when he gave one of the all-time great commencement addresses—a speech at his alma mater, the University of Texas. McRaven was named chancellor of the UT system in January, and he’s already helping repair its reputation, which had suffered after an admissions scandal and other controversies.