Jamstone is just mad cuz his team may not make the playoffs.
Zach Randolph does not have the credentials prima facie to even be brought up: (e.g. never even considered as an mvp candidate before (if he was this good this year, in some previous year, probably he would have been considered), not an all star (if he were this good, he would have been selected as an all star recently), not first team defense all NBA ...). Zach can score the ball pretty well. He does not make his team better like Tim Duncan does and he is not the great defensive player that Tim Duncan is. The Blazers had basically one primary scoring option. Hence, Zach had to try to score almost every time, if he could. The Spurs have multiple scoring options, Parker, Manu, Barry, Finley in addition to Tim Duncan. The Spurs share the ball more. Hence, Tim does not have to try to put up huge numbers every game.
So, Jamstone is saying something ridiculous for reasons I can't even guess.
Let's look at 2 way players: Garnett, Kobe, Artest and that is about it.
Wade and LeBron are not yet really two way players. Others are not good enough. Of the true two way players, Duncan is clearly the best. Bill Simmons quote is sufficient: If Tim Duncan plays 75-80 games, the Spurs will make the playoffs. The same cannot be said about Kevin Garnett. Kobe clearly does not elevate his team like Tim does (look for example at 2003 when he had little help because of David's back and the others had not yet emerged). Artest gives teams such a poor chemistry, is not good in terms of shot selection and is just not as good a player as Duncan.
Clearly, Nash is out by now. If we consider Wade and LeBron or even Dirk, then we are looking at one way players. Moreover, they are not playing as well this year as they did last year, in my opinion. Besides, defense is just as important as offense and Tim clearly outclasses them in defense by a mile.