Doc Rivers -- It's Time To Clean House ... And Grab A Cool Million

Clippers' skipper Doc Rivers would prefer a NBA Championship but he'll settle for a boatload of cash ... he just scored an easy million after unloading his L.A. condo a year after buying.

Rivers picked up the swanky Beverly West pad for just over $5.5M last year and 15 months later ... he passed it off for $6.5M.

He could go coast to coast in these sprawling digs -- it's 3,813 sq ft. with access to a salt water pool, and fitness center, and throw in 2 parking spots ... for the 3-point play!

Rivers opted out for an upgrade ... he put the cash toward his new $8.2M perch, up in the bird streets of the Hollywood Hills.