He's the only one that has had great success at the college level after coming from the NBA.

Juwon Howard had some success at Michigan before they fell off a cliff this last year. Dan Majerle was head coach for Grand Canyon during their transition to DI and had winning records most of his years there but was trending the wrong direction and got fired after 1 losing record. Most NBA coaches that transitioned to college were former players who jumped straight to the NBA coaching ranks rather than working themselves up the coaching ladder like KY has. Many of them were also not successful at the NBA ranks before turning to college.

EDIT: Mike Woodson has done a decent job thus far at Indiana, but only 3 years into that particular role.