As to a spread vs traditional offense....the spread can work (see Colts, Saints, Pats), but is better suited for the Domes but it can work anywhere. The K Gun was basically a spread formation, so if you have a great trigger man you can run it. The best example of the traditional offense would the Cowboys with Emmitt, D Johnston, Aikman, Novacek, Irvin, and Harper. Again, that works too...but any darn offense revolves around the trigger man.
When we find our QB, we can run whatever we want b/c it is all about the QB in the NFL. Yes, there are the few exceptions, when the D is so dominant, but those teams historically have not sustained dominance, whereas, the teams with great QBs can re-load year after year.
I'd like to see Brohm get his shot at the role. He has the measurables, toughness, intelligence, leadership qualities, and arm to get it done and he is ready.