If Sir Devoir was given a chance to be playing at a position other than goalie, he would choose defender. With his long arms as ether a Gallade or a human and his experience with blocking shots in net, I think he could be great at the position. Granted, he's not that used to actually shooting the puck at the net, but scoring goals is not as important for defenders as it is for the other positions so I think he would be ok despite that. Also Devoir would be great in hockey fights, as he is a half fighting type Pokemon and hasn't forgotten how to do those moves, and actually trained in boxing.

 As for ether right or left defender, it would not honestly matter to him as he feels like he could be good ether way. I guess I could say right defender just because he is right handed. Still, he would be happy actually trying to shoot pucks at the goal for once, but I think he is just happy being in net in the end.