It isn't Cam. Last year when Cam first came in, we ran 4 wide, and had great run/pass balance. After that, we went back into our shell, and ran the same offense we have always run under Les.
Miles is handcuffing because lack of confidence in players and the qbs aren't smart enough to handle the majority of the playbook. The guy who was most familiar with the playbook is at another university.
I disagree. Chavis' preference for smaller guys, who he mistakenly thinks are faster, is the reason we can't stop the run anymore.