Easily the most compelling roster question at this point is Joseph's status. The Spurs are paying a lot in terms of cap space to hold onto his rights. Of course, unless Joseph signs his QO (would say that's about 20-percent likely if he and team don't have a plan in place for a different contract), the Spurs can free up that space any time they want. If Joseph accepts his QO he gets a de-facto no-trade clause for next season, but the Spurs gain $2 Million in cap space. The team would retain his Bird rights to next off-season if they can't agree to a trade for him before then.
So what's the holdup? My guess is that both the Spurs and Joseph only want their partnership to continue if Cory has a clear spot in the rotation. The Spurs probably aren't willing to commit $3-5 Million on a third-string PG, and Joseph doesn't want to toil on the bench forever, despite being a good soldier about it so far. But as Harlem said, the backup SG spot is potentially available, and while Cory at 6-3 is undersized in many matchups, he can hold his own in most because of his solid defensive skills. The Spurs would also like to pair Patty with a play-maker/penetrator. Joseph can do that WAY better than most folks on this board give him credit for. There are teams like Golden State against which such a small set of backup guards would struggle. But that can be resolved by bringing in a third-string wing like Ellington. I think Cory would be willing to ink a long-term deal if he was told he was going to step into Manu's shoes with the goal being that he would get a crack at Tony's spot in a few years.
Obviously Tim eats first, and he's given up so much food already. But I came into this off-season thinking that keeping Cory was at the top of the optional list. I'd much rather keep Joseph and figure out the fourth-big issue later, provided the money is the same. I think holding onto Cojo will go a long way to keeping the Spurs relevant beyond next season.