Fragomeni knew how to beat Haye and almost pulled it off, Haye was on the verge of folding but to his credit dug deep and won by the skin of his teeth. If Chisora can go 12 with Vit he can take anything a CW like Haye will land on him, he'll walk him down and finish him in the mid to late rounds.
I really wouldn't be surprised to see Delboy get to Haye late. Haye is massively overrated at HW. He hasn't tested the waters with any real competition apart from Wlad.