All the various offseason plots could thin quickly if a Durant deal falls into place. I'm assuming Phoenix would target only the #14, Vassell, and Barnes, and from here it's pretty easy to see how the 15-man roster shakes out.
1 - Wemby
2 - Durant
3 - Fox
4 - Castle
5 - Sochan - (RFA or 3-years/$50, 3rd year team option)
6 - Harper
7 - CP3 - back to chase a ring for the next year or two
8 - Champ
9 - KJ
10 - Wesley
11 - Branham
12 - #38 pick - 7-footer project
13 - Biyombo - has one job: mentor the #38 pick
14 - Mamu - He's Malik Rose to me, dammit.
15 - Harrison Ingram - smart guy who will probably a fantastic addition to the Spurs FO one day.
Practice beefs ought to be great (Anchorman style). I can see it, with OG Durant spearheading the bigs and CP3 flashing gang signals to his team of guards.