Good point. It seems like the "identity" Fisch is going for is using the run to set up the PA pass and open up things downfield. That is why we have seen so few passes from Weber. The run is not working, so the team gets shut down.
An idea might be to make it even more pro-style. Use the pass to open up the run. The Eagles are one example of a team that does this, as they throw a ton to their RBs. In a college setting, USC is a team that does this as well. They throw a ton of high-percentage passes to RBs and three-step drops. This keeps LBs on their heels and opens things up for the run. Granted, they have an incredible OL and RBs every year, but I digress. The scheme is what I am talking about here.
I actually like Fisch's offense, but I want to see Weber throw more. Play to the team's strengths and don't pander to the "pound the rock" mentality. The goal is to win the game, not play to an "identity." The best players on the field for the Gophers are the WRs. I see nothing wrong with making the offense run around them. Take the OL's weakness out of the game as much as possible.
Broken down, I think three-step passes and throws to the RBs out of the backfield are the key to getting the offense running again. Basically, make it easier on Weber and play to the team's strengths.