Well, let's look at the results.
The two plays in the last few minutes that Rondo brought up the ball resulted in a Rondo turnover and a Rondo miss in which the Grizzlies forced Rondo to shoot with the shot clock running down.
Pierce brings it up and Garnett scores on the pick and pop.
Pierce brings it up and drives in for a layup on the same play.
Pierce brings it up and (surprise!) the Grizzlies know what's going to happen and defend it well enough to deflect the pass but Ray still gets the ball and the three.
I don't know why anyone would be complaining. The play worked three times in a row, although a little bit of luck was involved in the 3rd.
Ego has nothing to do with it. The Pierce/Garnett pick and roll has been money during this entire win streak and Doc knows it as well as anyone.
I don't think that's right. I think the play before Pierce hit the layup was the Rondo shot with the clock running down because Pierce had the ball until there was 8-9 seconds left and then threw it to Rondo in the corner. If you look at it like that it worked once in the last three possessions and we lucked into a three on another of the three. I think that we score less often when Paul or Ray bring the ball up than when Rondo brings it up and passes it to them. I don't like to see Paul or Ray bringing it up during most of the game but I don't have a huge problem with it when the other team's looking to foul us.
You are not remembering correctly. The play by play backs me up.
2:14 Rajon Rondo bad pass (Mike Conley steals) 103-97
2:11 Kevin Garnett personal foul (Mike Conley draws the foul) 103-97
1:58 103-99 Rudy Gay makes driving layup
1:35 Rajon Rondo misses 22-foot jumper 103-99
1:34 103-99 O.J. Mayo defensive rebound
1:29 103-101 O.J. Mayo makes 16-foot two point shot
1:29 Boston full timeout
1:20 Kevin Garnett makes 22-foot jumper (Paul Pierce assists) 105-101
1:04 Kendrick Perkins personal foul (Marc Gasol draws the foul) 105-101
1:04 Rasheed Wallace enters the game for Kendrick Perkins 105-101
1:04 105-102 Marc Gasol makes free throw 1 of 2
1:04 105-103 Marc Gasol makes free throw 2 of 2
0:48 Paul Pierce makes layup 107-103
0:48 Memphis 20 Sec. timeout
0:42 107-105 O.J. Mayo makes 20-foot jumper (Mike Conley assists)
0:17 Ray Allen makes three point jumper 110-105
0:17 Memphis full timeout
0:13 110-105 Zach Randolph bad pass (Rasheed Wallace steals)
0:07 110-105 Rudy Gay personal foul (Paul Pierce draws the foul)
0:00 End of the 4th Quarter
0:00 End Game
So, the play did work 3 times in a row. In fact, I don't even remember Pierce touching the ball on Rondo's miss, although I wouldn't swear to it.