It's not the 3-4 defense that agrees with Channing because he has played in a version of it since he was drafted. Crowder is now asserting himself instead of relying on Zach to not only make the defensive calls but to make the plays as well.
Channing's improved play might also have something to do with him playing for a new contract.
I would like to see him extended, but I want to see a hard hitting beast next to him next year. Rey Mauluga!