Dunphy said in his column in the Irish Daily Star
"I feel that Doyle is a top-class striker and he has been Ireland's best player under Giovanni Trapattoni.
"But I do feel that he has made a massive blunder by joining Wolves. He should have asked himself this question: if I was good enough to spark Chelsea's interest 18 months ago, should I now settle for Wolves?
"It's not as if no other Premier League clubs were interested in signing him. Sunderland, Fulham and Bolton all actively chased his signature and Aston Villa and Everton have also shown an interest in securing his services in the recent past.
"Any one of those clubs would have been a far better destination for Doyle. Fulham, Everton and Villa are clubs on the rise and all of them will be playing in the Europa League next season. And, crucially, all of them have hugely impressive managers who could have helped develop Doyle as a player."