Yeah, the Spurs could go with Belinelli or Fernandez at 28 instead of the big. However, it just doesn't seem like the Spurs are aiming to do that. Their workouts seem to be players who could slip to 33 instead of players who are going to be at 28. Almond is probably the highest rated player they've worked out that we know ... but even he could possibly drop to the second round a la Michael Redd.
If the Spurs were working out Byars and Cook who could somehow fall to 28 but won't fall to 33, that'd be a different story.
Maybe I'm reading into it too much, but to me it seems like the Spurs know what they are doing with 28. Whether it's a promise or a trade, I'm not sure.
If it's a promise, I don't think it can be Fernandez (he'll probably be gone) or Belinelli (he wouldn't be working out if he had a Spurs promise). If it's a promise, it's probably someone like Stanko, Fesenko or Gasol.
That's a good question. I guess it depends on their view of James White. If they see White as a borderline prospect, they might draft a wing to give him compe ion. If they see him as having a good future, they might go international again.
But I don't think Koponen is their guy at 28. He's working out for teams that pick before and after the Spurs, so I highly doubt there's a promise.