The Colorado Rockies might be looking for some middle infield help this month. With 2B Jonathan Herrera and Clint Barmes playing so well they might just be looking for a backup who can play both positions. John McDonald, Julio Lugo, Willie Bloomquist, Adam Kennedy, Craig Counsell, Jeff Keppinger and Ronny Cedeno each make sense. The Rockies are sitting at 44-38 which has them five games behind the Padres in the N.L. West. If Herrera starts to slump then guys like Mike Aviles, Mark Ellis, Christian Guzman and Mike Fontenot could come into play. The Rockies don’t need any major changes to compete for a playoff spot this year.