Second Guessing Never Stops the Clock
Once upon a long ago time there was a basketball coach. Among other of his qualities, he was famous for hating to ever call time outs when his team was struggling with its play or facing an opponent's surge. He almost never did this, which even back in this era was considered most unconventional if not controversial. But the coach believed that his players were properly prepared and could, indeed should, figure out their problems in real time during game action.
This coach's name was John Wooden. Check his record out sometime. Then think about if you really want to insist Joe Mazzulla was the reason the Celtics lost to Miami last night or if maybe, just maybe, the incredibly gifted and even more incredibly inconsistent team Boston puts on the floor had something to do with it.