His book is a bit cagey on it, it seemed to me there were hints ManU were interested, but he had a few injuries and it petered out. Then Giles on his second stint didn't feel he fitted the style of play he was after (which was unhinged, he should have been first name on the teamsheet!), and so when Coventry came along it just sort of happened, quite quickly I think. He was honest enough to write about being very unhappy for a while and going on the beer a bit too much at times after the move, not Georgie Best style, just too many hours frittered with other players and a bit too much booze for a professional sportsman.
There was a long running wages grumble too, I think. Coventry were a successful club then, I seem to remember they had been top flight longer than anyone except Arsenal - hard to believe now. Their cup final win was the only time I have ever seriously cheered for anyone except WBA. I was screaming for him to get a goal.
I read the book a few years ago, so I might have misremembered bits, please feel free to correct, anybody.