Kerr calls a TO to halt runs for a team that is full of championship winning vets. Joe's philosophy on TO's is just sucks. It's counter productive and has cost us this season, and almost again last night.
The team won despite his coaching.
Yep. If it wasn’t for coach average Joe, the Celtics would probably have the best record in basketball by now! I mean, 7-3 over the last 10 games…What is this, amateur hour?? Pathetic! 
Yeah, Kerr is calling timeouts because the Warriors were spiraling, not just in a single game, but in the season. He was desperate to try to stop the bad momentum.
Doing this builds functional basketball IQ, especially when players are under duress. I like doing it for the regular season, but then being willing to take timeouts in the playoffs.