McCarthy is absolutely brutal with clock Management. His clock management and tactics are so bad that even National Media criticize him for his errors. Bill Simmons and Michael Lombardi do not even closely follow GB and even they are well aware of his blunders. His decisions either directly lose them games or make their games much closer than they should be. Just off the top of my head:
-His clock mismanagement lost the 1st Bears Game. He basically allowed them to run down the clock and kick a last second fg, thereby preventing Rodgers from getting a chance to tie the game.
-Philly Playoff Game. After Jackson's 3rd Quarter TD McCarthy put the Offense in shut down mode which basically gave Philly a chance to almost win at the end. Even shutting down the Offense after the Jones drop was a huge mistake.
-Against NE on the last Drive he used up too much time (which was ironic since usually he lets the other team run down the time)
-Against the Bills, instead of using his Timeouts to give Rodgers the chance at a 2 Minute Drive up only 13-7, McCarthy uses 0 time outs and allows Buff to basically run out the clock.
-In the Super Bowl, McCarthy never uses 1st Half Timeout #3. Up 21-10, GB could have had roughly 1:20 to at least try for a FG. Instead, GB gets the ball back with only 39 seconds left and then runs 1 running play to end the half.