The White Sox announced today that manager Will Venable's coaching staff will be overhauled this winter. Specifically, the club announced that they will not be renewing the contracts of pitching coach Ethan Katz, hitting coach Marcus Thames, first base coach Jason Bourgeois, and catching coach Drew Butera. James Fegan of Sox Machine adds that Sergio Santos, who manages the club's Triple-A affiliate in Charlotte, will also not have his contract renewed.