I'm kindof torn on this.
I'm gonna go that it is a good thing, but to make that work in my mind, I'm going to go back a few years when we had a certain MLB suck (EJ) and get moved to the outside. After playing out there a couple years he moved back in when the Chiller took over and did pretty good.
Maybe all Erin needed was some reps on the outside and now, with a bit of coaching, could be ready to step up.
Additionally, one could also take that same rationale and say that it could apply to whomever they plug in at the Will. Running him out there and feeding him to the wolves at the MIke might not be as good for him as letting him get some reps at the Will.