He hasn't had the best career but it hasn't been bad. If State doesn't want this to happen they should be paying their AD's more.
Cohen "lost" Mullen and Vic Schaefer (WBB - made them 2x NCAA runner's up). Then he hired Joe Moorhead who lasted 1 season before he fired him and hired Mike Leach. But... both of those hires were considered very good hires at the time.
Women's basketball he hired Nikki McCray-Penson (Lady Vol and Women's BB Hall of Famer) who was Dawn Staley's #1 assistant at SoCar. She resigned like midway through her first season for "health reasons" and they had an interim for the rest of the season and next season. That hire was a homerun, until it wasn't. Now they have Sam Purcell who's been an assistant at Louisville and Auburn.
In Baseball Cohen replaced himself with Andy Cannizaro from LSU. 3 games into his second season he resigned because he was having an affair with a football staff assistant. Then Cohen hired current coach Chris Lemonis - the good is Lemonis brought a national title. The bad is he went 26-30 last year.
Cohen fired Ben Howland in March and replaced him with New Mexico State head coach Chris Jans. So we will see how that goes.
Overall.... not a stellar record of success in the hiring department.
He built up equity with his baseball hires, which he knew. Cannizaro was somewhat unfortunate because I believe MSU people will tell you that he was a really good coach. Hate to say that he couldn't do much about Mullen and Schaeffer- one going back to a school he coached at that is easier to succeed and the other going home to a big brand.