I'm no fan of Morris, but the 49ers ran wild on Staley last year as well, so maybe it is the players? Or, it's how the head coach is dictating to the DC.
We play a 3-4 with an undersized DL. That puts a lot of pressure on our ILB's, where we have a rookie and Reeder, and Reeder is just better than average.
We have put a lot of cap money into 3 defensive players, but they can't cover the whole field and no one else is stepping up and many seem to be stepping back. It's a risky model, it's built to defend the passing game, but smart coaches know how to abuse it.
