I'm kind of glad we didn't get McAdoo, to be honest. He had no playcalling experience and I think Joe Philbin needs to get out of his comfort zone. Also, McAdoo to my knowledge has basically made his reputation on Aaron Rodgers. Lazor has made his reputation by coaxing good years out of Jason Campbell, Seneca Wallace, and Nick Foles.
My first preference would still have been Gary Kubiak but out of Shanahan, McAdoo and Lazor, Lazor is easily the most exciting of the other three. I know hoops doesn't like him, but I think his work at UVa is actually a positive. He improved production by trying to work with what he had.