I love this revisionist history. There's an unfounded rumor a few years ago that Smitty demanded a trade. It dies a quiet death like most BS rumors. Now all of a sudden people are bringing it back up as if it actually happened. I hate this sort of tomfoolery.
CJ is way better than Tuck and saying otherwise is blatant trolling. Tuck is a good pass rusher. CJ is a very good pass rusher and a very good run defender. Not only is CJ better at the thing Tuck is best at he's also a complete package.