Of our many, hated Bears rivals, Mike McCarthy might be the hardest to work up any vitriol for. He's just ... there.
That's not to say that he's not a good coach. During his five seasons with the Packers, the team has reached the playoffs three times. They won the NFC North in 2007. Coming from the offensive side, he successfully navigated the Packers quarterback transition from Brett Favre to Aaron Rodgers. This season, he dealt with a neverending stream of injuries, and his team is still in the NFC Championship game. That success makes him almost ... admirable.
According to his bio from the Packers, McCarthy has a blue-collar personality. Considering that doesn't actually mean anything, we can't even hate him for that. He is involved in lots of charitable work for Green Bay and his native Pittsburgh, and he even visits cancer patients. By all accounts, he's a good guy.
There's got to be a reason for Bears fans to hate him. WAIT, I KNOW! He's the Packers coach. That's more than enough.