Not odd for this FO.
They're playing it cool. They don't feel any more pressure to get a deal done now, than they did three weeks ago when the agent was pressuring a bigger deal.
This deal will get done and get done on the timeline that the Spurs are comfortable with. It's apparent by the reported $$$ involved that the Spurs are the only real suitor for Udoka left and that Udoka's preference is clearly to play with SA.
Perhaps the Spurs are looking to finalize the buyout/waiving of Spanoulis before committing the $$$ to Udoka. Or perhaps they're exploring the trading of Beno Udrih.
Bottom Line: This deal will get done because there's mutual interest and the $$$ aren't that far apart....but it may take more time.