I just don't think there is another year in the team. They came out pissed this year and played balls out after the disappointment of 2010, but, as March and beyond have shown, the Spurs are now in a no-man's land of being a first round team with a second round ceiling whose core is declining fast. The only reason not to completely blow the team up is because Tim doesn't deserve to be stuck in a rebuilding effort. I think it needs to be done though.
Tony and Tiago have good value going forward, but of course make them available if someone offers a really nice package. Hill and Blair are talented players who I think can be counted on to be decent role players going ahead.
Go in the lotto this next year and maybe pick up a talented young forward like Anthony Davis, Harrison Barnes, Michael Gilchrist, James McAdoo, Jared Sullinger, or Perry Jones or maybe a promising guard like Austin Rivers. The 2013 draft has some promising bigman prospects with Andre Drummond, Dajuan Coleman, and Isaiah Austin, but of course that's a long way off and who knows how many of these guys live up to the hype. I'd like the team to be drafting high in each of the two drafts after this season's.
I just don't want to pass up having a good 2012 pick when there isn't a lot to gain by bringing the team back next season. The Spurs could really get a nice player in what looks like it could be another 2008-level draft (the one with Rose, Beasley, Mayo, Westbrook, Love, Gallinari, Gordon, Lopez, Hibbert, McGee, Ibaka, Batum, Hill, Jordan, and Dragic). I think Manu still has enough left in the tank to get a nice young player in exchange for him.
If there's one thing you can give credit to Stern for, it's that a small market can build a le contender with smart moves. The Spurs proved it over the past 15 years and now the Thunder are doing the same. While Tim Duncans and Kevin Durants don't come around that often in the draft, this front office has shown the ability to get tremendous value with picks like Parker, Ginobili, Hill, Blair, and Giricek. The Spurs won't be a le contender without landing the next Duncan (or Durant), but they can be a good playoff team with some upside again in a few years if their trend with the draft can hold up.
I don't want to see the front office just kick the can down the road; it's getting near time to build a new Spurs team from the ashes of this incredible one that has given us fans so much. I do hope to keep Pop, as has consistently developed young players who no one gave much of a chance to do much: think Malik Rose, Tony Parker, Stephen Jackson, and George Hill.