Some have suggested the Diamondbacks trade Stephen Drew to Atlanta, due to the fact that the D'Backs owner soured on him to the media. Or JJ Hardy from Baltimore. Even Alberto Callaspo from LA is probably not coming to Atlanta. Baltimore and LA are in the race and are not looking to move the latter two. Arizona, though they may be realizing this is not their year, will be looking for a very lucrative package to move Drew.
So where does this leave Atlanta? Backup SS Jack Wilson injured his finger last night against the Mets. It seemed similar to Simmons' injury. Tyler Pastornicky should be on his way up from AAA. I feel the Braves will make a move, just not a major move for a SS. Most realistically I can see the Braves trading for Colorado's Marco Scutaro (.273, 4, 24) or Kansas City's Yuniesky Betancourt (.238, 6, 31). Both could play every day similar to Alex Gonzalez of a year ago. Other possibilities could be Minnesota's Jamey Carroll (.231, 0, 13) or Boston's Nick Punto (.212, 1, 8). Both Carroll and Punto are signed through 2013.
If the Braves were to trade with Arizona, it would not be for Drew. Willie Bloomquist (.293, 0, 13) has more versatility and would cost the Braves much less than Drew. If the Braves wanted to go the very cheap route, they could make a trade with Seattle for Brendan Ryan (.184, 2, 22) or with Milwaukee for Cesar Izturis (.212, 1, 8) or Cody Ransom (.187, 4, 20).
If I had to make a guess, I see either Scutaro or Betancourt ending up with Atlanta, with Bloomquist as the third choice. Carroll would be a good fit, but I don't think Atlanta wants to have him through next year. Same with Punto. As for the others, I'm sure the Braves know they will be available later in the year for little to nothing. The Braves will not make a huge trade to acquire a shortstop. Maybe a pitcher or power bat, but not a SS.