Blackjack...
Just a couple of things for clarity.
First off, I do NOT want Sato coming in as the primary backup SF. I would rather use the draft to fill that role or see Hairston get minutes. I see him replacing Roger Mason Jr. at SG and playing a few minutes here and there at SF when the lineups allow it(a smaller opposing SF and three guard lineups). Manu should not be playing more than 25 mpg during the regular season from here on out and Hill should take all the backup point minutes and some minutes at SG. With Tony at 33 min, Hill at 25-28, and Manu around or a little less than 25 that will leave around 17-20 mpg for Sato(this includes 5-7 minutes at SF per the cir stances above).
Speaking of minutes, I do stand by what I said above...though Blackjack makes a good point in that Sato could have said it with the understanding that he will have to earn them. Whatever the case, I think if he really wanted to come and the Spurs really wanted him an understanding could be reached. Sato has said himself that San Antonio is one of his two favorite cities(Siena being the other) and that Tim Duncan is one of his favorite players, so that's a pretty good start.
The linchpin in all of this is that the Spurs need quality depth...and they need it as cheap as possible. If Sato will agree to come at less than the LLE I don't see where the issue lies. TBQH, I'd be surprised if the Spurs didn't at least gauge interest since they drafted him and he has developed into a really good player in Europe. This has been the Spurs MO for what, the past decade?