Probably when they realized they couldn't get rid of Beno.
Seriously, I think there's only one GM in the NBA who thinks this kid is worth the $1.7M he's being owed...and right now that GM is concerned about getting Mike Bibby, still has Eric Snow and Damon Jones' monstrous contracts on th books, and Boobie Gibson starting to show some promise.
Beno is either going to be part of a larger deal, or he's going to be someone's third or fourth option to fill a backup/third string PG role if the team hasn't already so by end of the off-season.
IMO, the Spurs will probably hold on to Beno this year, then draft his replacement next year.
Bottom Line: Beno is so damn untradeable that it's pointless to go after another PG and end up with 4 on the roster when every spot is crucial.