I think it's right to move on from the Spurs' three-guard lineup

Since they are rim-attacking guards who drive to the basket for 2-pointers, Paxson at least enjoys some mid-range shots, but if you're going to run a three-guard lineup, you need players who can either enjoy the 3-point line or have a clear strength in it.
If you look at the three of them individually, it's not even that 3-point shooting is their weakness—their success rates are all looking decent these days...
Also, it increases the defensive burden on Wemby, and while Champagnie and Vassell helped by providing spacing on offense, having a three-guard lineup seems bad for Wemby's two-way impact.