Richie didn't yell during Wanted because he's been reading this board and people thought he's having tourette syndrome. So, he stopped doing that.

He is also depressed because Jon scolded him when he messed up in Boston. He's worried he'll lose his job to Bobby.

And yes he's finally tired of doing solos from songs off Crush/Bounce/HAND because they aren't as kickass as the old stuff.

:P