Chicago White Sox
Lastly, the Chicago White Sox have started off slow this season, and are another team that may benefit from another bat in their lineup on a day-to-day business to shake things up.
Adding O'Neill to a lineup that features Luis Robert Jr., Eloy Jimenez, Tim Anderson, and others would give them a formidable order to face off against the best teams in the American League.
While the White Sox's pitching is deep on paper, it has struggled a lot like the Cardinals' has so far this year. Yet, I don't think guys like Lucas Giolito, Lance Lynn, and Michael Kopech are falling off altogether. One of these names could be a great addition to the Cardinals' rotation in a swap with O'Neill.
Dylan Cease is obviously the prize of their staff, but he likely wouldn't be dealt in an effort to acquire win-now bats like O'Neill. Should the White Sox sell though, they could throw O'Neill and other top prospects at Chicago in hopes of a deal.