1) We don't have a point guard like Steve Nash. I think this is a huge part of why things work for Phoenix.
2) We don't have nearly the depth of athletes surrounding said fantastic point guard like Barbosa, Bell, Jones, and Marion.
3) It was one game that they eventually lost due to fatigue. And if they'd tried it again, I suspect San Antonio would have further exploited their matchup advantages. Doing it for one game is one thing, but repeating it over and over will not be successful.
4) With regard to the "we won't face a Tim Duncan," my response is that the difference between the better NCAA big men and Duncan is less drastic than the difference between our team and the Suns.
5) Small ball will be sufficient to beat weaker teams, but we'd probably win those games with Thomas/Zoubek on the floor anyway. It's against the more elite teams that we'll need some size.
Devil's advocacy aside, I don't think we're going to HAVE to play extended small ball minutes. I think that Thomas and Zoubek are going to make solid improvement this year. And if they can give us 35-40 minutes of solid post play, we'll be fine. I think small ball is best suited for limited use, as with any quirky strategy. Overuse will result in the strategy being exploited by better teams. But in short spurts, it can be a very effective weapon for us. And if Zoubek and Thomas can give us 35-40 minutes, that could leave us with about 10 minutes or so of small ball to wreak havoc on the opposition.