The thing with Mayhew in Minny was that during the inmates running the room years of Parise/Suter he never got a decent chance of showing if he can keep on scoring in the NHL. Putting him on a good line with decent TOI would have gone against the hierarchy that those SOB's Parise and Suter had managed to instill into the Wild. Parise first, then the next best draft picks, then any AHL ringers playing 10 minutes in a game and out the minute they made a mistake. Top that with Boudreau who liked to give a lot of TOI to the team's stars, and Mayhew never had a real chance. He played a couple of games, didn't score, got sent back, scored a lot of AHL goals, came back, and so it went for years. When Guerin and Evason came along things changed, but Mayhew might be too small for the winning 50/50 battles those two seem to emphasise.
Anyways, Mayhew seemed to be good character, and I am happy if he has now found a place in Philly. He was always treated a bit like raw meat, but he always did his best with his limited opportunities, never complained, at least publicly. All the best for him.