Steve Lavin decided, while in college, that he wanted to make a career as a basketball coach. His dad was a hall of fame basketball player for University of San Francisco back in the 1940s who became a revered AP English teacher for 40 years.
While still finishing college, Steve Lavin reached out to Bobby Knight, Gene Keady, Jerry Tarkanian and Coach K and took unpaid positions with Keady and Knight, to learn the game. He spent about 7 years earning next to nothing with Purdue and then UCLA. He paid his dues, got promoted to assistant and lucked into the head-coaching job at UCLA when Jim Harrick got fired for lying about expense reports.
The similarities with Collins were that they were both young head coaches who came from major programs.
And their fathers both were excellent basketball players. And both were criticized for not being great in-game coaches.
Collins played a lot of basketball. Lavin wasn't much of a player, but loved the game anyhow.
Collins was coddled or at least protected when he started in coaching. Lavin was not.
Lavin seems to have some personal depth to him... with an old school philosophy... and his teams tend to win.
A long article about Lavin from 1997.