FWIW, Ed Warinner has his own
instructional video series.
Personally I'd be thrilled to have Warinner on staff whether in OL or OC capacity. His OL experience dates back to 1987 while he also has 5 years of OC experience at two different schools (Army '97-'98 & Kansas '07-'09).
I'm not opposed to Frost coming here either in whatever capacity. Some people are a quick study and for all we know Frost knows Chip's offensive tendencies like the back of his hand? It sounds like Oregon is willing to do whatever to keep Frost up there which is a compliment to his abilities as a coach. I'm sure his upside is through the roof.
In the end I'd be happy with either Warinner or Frost in a co-OC capacity. My guess is Beck will be the other co-OC. He was always rumored to be the next OC when Watson left.