no I'm not. he screwed up because thats what he does. a smart coach would know that he and that defense was performing badly and would have avoided getting in that situation to begin with. if you know your defense isn't holding the other team back then you dont put them in a situation where the game depends on them. its that simple. they had a choice to keep the ball or give it to the other team and let them score.
Then you are basically giving Nakamura a free pass
Come to think about it... It is Rivera's fault!!!
He's the one that brought Nakamura on the team in the first place
and he did it again and again and again and it cost us wins.