The downside as an on the field coach is Holgorsen really hates recruiting.
It would be an enormous shot in the arm for this offense though, as this staff desperately needs to completely restructure this passing game. Whatever role he takes, it'll be a big influence because the Air Raid brings a structured approach that, imo, Satterfield has always lacked.
Some may be wondering how the Air Raid matches with Rhule's stated offensive philosophy, and to that I'll say to look at Michigan. A lot of their passing game is based on Air Raid concepts. You don't need 4 tiny wide receivers to utilize this approach it just started that way because the Air Raid, like most offensive systems, was designed to solve roster limitations at a school that didn't recruit the way the bigger schools did.
Whatever role he ultimately takes, it will help solve the biggest problem this offense had last year: rhythm and timing. Our passing concepts had no sense of timing in their progressions and the QBs often held the ball, way, way longer than you can realistically expect to block. That's literally the problem the Air Raid was designed to solve.