Personally, I think the way that Wane has come up through the coaching ranks at the club, so to speak, must surely make him favourite.
He coached the academy (or one of the other junior teams), they seemed to blitz everyone, IIRC. Now he's been made an assistant to one of the best young coaches in the game. He was given the reins for 2 or 3 games last year and the team played excellently under him. This year, he's going to be furthering his knowledge and experience as an assistant, with a view to becoming a head coach. Surely he should be given the nod and anyone else being considered should be brought in as his assistant with a view to taking over in 3 or 4 years when Wane may move on.
CP's idea of bringing Faz in as an assistant is excellent. But, somehow, I don't think Mr Lenegan will pay the asking price to lure him away from coaching at Saracens.
Sadly, I think it may be many years before we see a prodigal son (Edwards, Faz) return to coach at our illustrious club. We just can't compete with the Union media bandwagon and financial clout