I think Calvillo still has it, it was just a matter of Hawkins and Miller not being ready for the CFL. We're moving back to Trestman's offense, so everyone is used to it.
As for the J-Rich injury, it definately sucks (especially since it happened at practice -_- ) and it'll be a huge blow to the team, but we have good depth at WR with SJ, Bruce, London. I'd consider signing Bratton for the remaining of the season.
People forget the Als were going downhill fast in 2007 before Trestman arrived. Calvillo looked like he was close to done. Great coaching masked a lot of the weaknesses in the roster. This season it looks like we have no coaching at all. It looks as if they're running plays they're trying for the first time.