Are you laughing because he was worse than "not really good"? Do you know what he did and how he played in his first 4 seasons? Or how he played in the playoffs early on? He was basically a certified bust. NY fans wanted him dead or traded and were cursing the Giants for not just keeping Rivers and the draft pick.
he was also running one of the most complex offenses in the NFL
If he was a "certified bust" roethlisberger was a certified game manager...neither of which are true