I think we were all convinced that Hundley was better than Keenum, who is extremely limited. But he is a match to the offense they are running.
Riley Reiff was discarded by the Lions because he stunk out loud. Jake Long, their previous, was just worse. The improvement has on their O line is more than a rag tag street FA signing.
The offense was built for Rodgers. And McCarthy hasn't gotten it tuned to his backup QB. That is a coaching failure. But he is learning about his new QB as his new QB is making his first NFL starts. That is the risk of draft and develop.
Even a vet backup will not be able to run Rodgers offense.
The bigger question is this: does McCarthy's offense, or Capers defense make sense in a limited practice time League?
I think smart colleges and Belichick have it right. Simple for us to teach and them to learn.