Celtics ownership makes around $5-6m a year in profit, while paying a head coach $7m a year, They can now hire a $1m a year guy to coach a rebuilding team, and actually make a little money. If Ainge makes the right moves, the rebuilding might not be all that painful.
There's an old sayin when evaluating coaches - It's not the Xs and Os, it's the Jimmys and Joes. When Doc had great players, he got a lot out of them. When he had lousy rosters, his teams struggled. He does have three 7 game series losses on his resume when up 3-2, but a lot of that was from either a slightly flawed roster or from too many injuries.
Overall, Doc Rivers was a godsend for this ownership group. he game them credibility for the first time with players across the league, and he led a team to a championship. Thanks, and good luck with the Clippers. With that team's checkered history, I'd double down on the life and disability insurance.