Th QO was pulled out bc his agent had made it clear he wanted out. He was going to sign with the highest bidder anywhere but the Spurs. I hardly think that is $ what he wanted. Rumors of 4 year deals, $50 million, then $40 million is what I have seen rumored. The Spurs best offered, per rumors was a moderate 9 mill per year, for 2 years with 1 year that I presume was a team option. He wanted more, tested the market, the market as we have seen wasn't at all what he (or many other agents let's be honest) expected. I think the ship finally really went south and things soured, when his agent was exploring potential sign and trades for Jsimms and after having reached an agreement in the Chandler/Simmons trade, the Spurs backed out at the 11th hour, I assume bc Joff Lauvergne became available all of a sudden at too cheap a deal to pass up on. considering that, Chandler in his contract for 2 seasons didn't make sense for the Spurs... they rejected that deal.. After that Simmons wanted out period.
Then you add in the fact that he maybe didn't have that strong an attachment to Pop and it's understandable.