You don't have to modify your offense. You modify your play calling. Lee could run a zone read option play for you and get you 5-8 yards but Frost doesn't call all that many QB runs anyway. Lee could have run this year at times but that wasn't the way he was coached. He isn't going to take it 80 but he can get you positive yards IF he's coached to do it.
Still a square peg/round hole situation. Lee takes away a dangerous element to the philosophy. I'm not saying it wouldn't work or that it never really has, just that it's not the direction we're headed. My biggest issue with Lee is that he's a pocket type and we both know that a consistent pocket at Nebraska isn't going to happen next season. I'd say the biggest benefit to him running this offense would be his experience, that does carry quite a bit of weight.