You guys can call Blatt an idiot all you want, but it's one of the assistant coach's jobs to make sure the head coach is fully aware of the timeout situation.
Someone dropped the ball here, but I don't think it was Blatt.
At least at the NCAA level, there is an assistant coach assigned to check the timeout situation with the official scorer after every single timeout, and make sure
the team's records are in sync with the official scorer's tally. Then they are supposed to make sure the head coach and all players know what the situation is.
I'm guessing it's the same delegation of duties in the NBA.
Someone dropped the ball here, but I don't think it was Blatt.
At least at the NCAA level, there is an assistant coach assigned to check the timeout situation with the official scorer after every single timeout, and make sure
the team's records are in sync with the official scorer's tally. Then they are supposed to make sure the head coach and all players know what the situation is.
I'm guessing it's the same delegation of duties in the NBA.