Back around October 3 the Cardinals announced that the team would not reissue contracts to pitching coach Derek Lilliquist and bullpen coach Blaise Ilsley, leaving the doors open for speculation as to who would be hired for those newly open positions. While the baseball news cycle usually runs after the completion of the season (meaning, the World Series is over), this year, for whatever reason, clubs are making announcements all over the place.
On October 20 the Worshington Nationals announced that pitching coach Mike Maddux, who played fifteen seasons in the majors as a pitcher for nine different teams and has spent the last fourteen years as a coach for the Brewers, Rangers, and Nationals, would not be issued a contract for the 2018 season. Maddux did not stay on the job market for long it appears:
Mike Maddux about to be named pitching coach of #STLCards, sources tell The Athletic.— Ken Rosenthal (@Ken_Rosenthal) October 26, 2017
The rumor appears to be Wikipedia official, too:
Maddux has been a major managerial candidate in past, has the been the pitching coach for one Cy Young winner (Max Scherzer, 2016), and has received praise for his work with the Rangers pitching staff, help taking the team to the World Series in 2011. He is also the brother of that Greg Maddux guy, for what that is worth.