I think Manu has done as good a job on Rip (at least first two games) as Bruce has, even though Manu only played him in spot minutes.
I agree that Manu has toned down his gambling for steals, and picks and chooses when to go after the ball. And, it's right that in the Spurs defensive schemes and with guys like Tim and Nazr (even Rasho last year had his fair share of blocks), a perimeter defender can afford to gamble a little more.
Charlie Rosen is a Phil Jackson lover, and consequently, rides the Laker jock like a french . Kobe is a GREAT DEFENDER when he wants to be. But, I agree with most of you Spurs fans when you say that Rosen was ridiculous to put ALL OF THOSE PLAYERS ahead of Manu in terms of defense.
In my opinion, the only guys on that list that are clearly better than Manu are: Kobe, Artest, Doug Christie (but barely at his age), Larry Hughes (though he gambles a lot too), Corey Maggette, James Posey (I think he's as good as any perimeter defender not named Bruce or Ron), Richard Jefferson, and Ruben Patterson. And, oh yeah, why didn't Rosen mention Bruce or Tayshaun?
The other guys are either too old or still have a lot to learn. I would easily put Manu in the class of a Raja Bell, Ira Newble, and Trenton Hassell. Don't know if I would say any are better than the other. But, Manu is definitely right up there in the second tier of perimeter wing defenders.