I'd rather put Loki on the wing and leave Yayo at centre. I don't think it's a better option for the Devils to cater to Loki possibly at Josefson's expense.
I'm torn on this. Josefson's looked surprisingly good along the boards in both games against the Penguins. I agree he's definitely more effective at wing than center, but Loktionov will likely be awful along the boards against NHL players. I think it'd be more effective as a whole with Loktionov at C and Yayo at LW.