It's no bold statement to suggest that Welington Castillo is not a part of the long-term planning on the South Side.
The White Sox are still rebuilding, developing young players at all levels of the organization and crafting the core of a roster they hope will yield a perennial contender. Castillo's a 31-year-old veteran and barring something unforeseen will not be a part of that future. Zack Collins and Seby Zavala, a pair of catching prospects, are currently finishing off their minor league developments at Triple-A. Collins is off to a hot start, with five home runs in his first nine games as a Charlotte Knight.