Re: Why didn't dolph cash in?
It would have been pointless for Dolph to cash in because Big Show was already out of the ring about 15 seconds after he won the match. It wasn't like last year at TLC when he was struggling to stand after winning the match, which gave Daniel Bryan time to cash in and kick him in the head.
Plus, as people have already said, Dolph is a heel and so is Show. They most likely don't have any plans for a face turn yet.