Whatever you do, don't suggest that the Spurs take a year to re-build.
The biggest thing that kept the Spurs from being a legit le contender this season, IMO, was Tim's knee. He was out for those games, and he was never the same when he came back. The Spurs opened up 16-4 in November, and Tim was still hanging right around a double-double almost every night. That team was capable of winning it all. Not long after that, his knee went south, I think, and the team was running up hill the rest of the season. They have a hole in the middle now, and they aren't going to be able to withstand the playoffs until it gets filled. And that's if everything else holds up.
If the Spurs could sign a legitimate big man. And if Boban could accelerate his development to be a legit backup C. And if Tony Parker's game doesn't fall off ANY more between seasons. And if Danny could come back shooting 3's like he did in the playoffs, or a little better. IF all of that happened, the Spurs could still contend next season. Take any one of them away, and they are just another year's playoff fodder. That's a lot of damned "IFs".