I don't see them being buyers. They are setting up for a run by looking at the youth. They really turned the roster around, especially with Dunn and Konerko coming off the books. What will their average age be going into next year? Now if they hit on most of their young players, they can look at sustained success.
They could maybe get lightning in a bottle, but if they miss it won't be just this season lost, but several more (by trading near MLB ready players).