The funny thing is, the White Sox made a few completely nondescript signings in the 2015-16 offseason that made the Sale trade and the current White Sox roster possible.
The 2015 White Sox were actually a pretty good team with some of the best-valued contract extensions in the league, especially the dirt cheap contracts for Sale, Jose Quintana, and Adam Eaton. They broke up that team primarily because of the tirades of Sale and Eaton, who were angry about team president Kenny Willams' decision to no longer let Adam LaRoche's son Drake travel with the team and be part of the clubhouse. LaRoche himself had a few issues with ADD, a condition that became uner public scrutiny a couple years prior when, while playing 1B for Atlanta, he fielded a groundball from Ryan Braun and just stood there holding the ball while Braun and his pitcher converged on the bag. Some stories have indicated that having his son around was a calming influence that helped LaRoche do his best to remain focused, and the White Sox (including Williams himself) ok'd Drake LaRoche to be around the team all year and travel with them and hang out in the clubhouse.
But that 2015-16 offseason, the White Sox added three free agents - Brett Lawrie, Mat Latos, and Todd Frazier. According to some reports, one of these three complained about Drake LaRoche being with the team all the time, leading to Williams reneging on his agreement. LaRoche then promptly retired from baseball, and this lead to the notable ire and tirades against Williams and the White Sox organization from Sale and Eaton (including the famous jersey-shredding incident), whereupon Williams traded them both.
I always figured it to be Brett Lawrie who complained, as he had a reputation for being a serious prima donna. But I heard someplace else, I forget where, that it was Mat Latos. Either way, Williams and GM Rick Hahn were forced to dismantle the team with the subsequent trades of Sale and Eaton, and eventually Quintana, who was apparently only dealt to complete the fire sale. And in the process, he gave a major piece to the 2016-2018 three time AL East Champion Red Sox.
Thank you, Mat Latos. Or Brett Lawrie...