Geren, 54, has served as the Mets' primary catching instructor as well as their bench coach for the past four seasons. His tenure coincided with an emphasis on analytics, as Geren is well-known for his use of advanced metrics as evaluative tools. Previously, Geren managed the A's from 2007-11, and the San Diego native still keeps his home outside Oakland. For Geren, then, a move to Los Angeles is a move far closer to home.
The Mets asked manager Terry Collins' entire coaching staff to return following their World Series run this October, but Geren interviewed for the manager's job that ultimately went to Roberts, before reportedly accepting L.A.'s bench-coach position. It is expected that the Mets' six other big league coaches will all return.
Perhaps the most obvious internal candidate to replace Geren on the Mets' staff is Double-A Binghamton manager Pedro Lopez, a former catcher who was the 2013 Eastern League Manager of the Year. The Mets could alternatively promote one of their other coaches -- such as third-base coach Tim Teufel -- to bench coach, or interview external candidates.
The club has passed over another obvious candidate, Triple-A Las Vegas manager Wally Backman, for big league promotions in the past.
Anthony DiComo is a reporter for MLB.com. Follow him on Twitter @AnthonyDiComo and Facebook, and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.