It's hard to give up what you've got.
For baseball teams, players have been part of the organization for years. Teams had enough faith in guys to draft them and then spent years watching them develop, with the hopes that those guys would end up being the ones to raise a World Series trophy.
And those guys still get traded.
The rebuilding White Sox are moving toward the eventual phase of their rebuild where they'll have to add what general manager Rick Hahn calls "finishing pieces" from outside the organization, the player or players who will take the South Siders from what's planned to be a good young team stocked with homegrown talent to a championship contender.