I still think that Pierce could thrive in a 6th man role (and I think it would extend his career several years), but I admit that the extreme negative reaction (and lack of much of any positive reaction) to the OP has made me rethink my original idea. I was never trying to state that this move is necessary, but before this thread I did think that there was a very slim chance of it happening this year. Now, I am hoping that JG grows into his role as a reserve this year, so that in the future Pierce can come off the bench once PP's production begins to dip (assuming Pierce doesn't retire).
I fully realize that there is virtually no chance that Doc even considers this move this year.
Thank you to all who responded with constructive criticism and insightful analysis. Not so much to those who added snarky comments and sarcastic digs.
Go Celtics!