Ray is one of the most efficient 2-guards in the league, he is an ideal fit for this team.
Pierce is still playing his game, he has definitely slowed down...but athleticism was never a real big part of his game.
KG has clearly had the biggest fall-off, but his desire is second to none.
I think the biggest problem with the Big Three is there inability to draw fouls. Free throws are easy points and we don't get enough of them.