Baron Davis says he wants to see Earl Watson be UCLA's next head coach ... and if that happens -- the ex-NBA superstar says he'll be an assistant on the staff ... FOR FREE!!!
B-Diddy is one of the greatest UCLA Bruins ever ... and tells TMZ Sports the former Suns head coach and ex-UCLA player is the right man to replace Steve Alford in Westwood.
In fact, Baron wants to see Earl coach the team so badly ... he says he'd be down to be on Watson's staff -- and UCLA wouldn't even have to pay him!