Is there any reason that people think Pho will part with Gortat? He is a big on a cheap contract. Pho is a team that is in the hunt for the #8 spot (although its a long shot). And they have no salary issues. If anything, they would use him to ship out Frye's awful contract and would expect a lot in return.
As far as Walton goes, who cares, his contract is up at the end of the year. So all we would be doing is paying him for half a year as a necessity for getting Varejao. Big deal. I don't know if I love trading for him, but if the Spurs really think he is the guys, the taking on Walton is no big deal.