Most of his PP time has been on the 2nd unit, and we know how that unit was deployed for most of GG's time here. No one who played consistently on that PP got a lot of points. I'm not saying we should just hand him a spot on PP1 and let him leech points, but we need to at least give him a legitimate chance there to show what he can do.
Panarin, Kreider, Zib and Fox are locks for PP1, so maybe we rotate that 5th spot with the kids until one of them clicks. Maybe we also even out the time between PP1 and PP2 more, actually starting PP2 on occasion.
At some point he has to either sink or swim. I think it's time to throw him into the deep end and see what happens.