All that time talking about wanting to be on a winner and then when his team finally makes a playoff run, he's whining about not getting his reps and causing problems in the locker room.
He helped the Patriots to a Super Bowl championship. He struggled through injuries this season (like most of his teammates) and played hurt.
The Patriots aren't the kind of team who would tolerate dissention. If Corey were causing problems, he would be on the bench.
I'm not saying he's the classiest guy in the world. But I do admire him for calling out the Bengals organization for the flea-circus it was.