Mark Weidemaier has been a manager, coach and scout.
He was assistant coach at Ohio State University while getting his master's degree. He was a minor league coach in the Kansas City Royals chain in 1982. From 1984-1987, he worked with the California Angels as a scout and minor league coach, including coaching the Salem Angels in 1987. He piloted the Algodoneros de Torreon for part of 1988 (replacing Alfredo Rios) and the 1989 Prince William Cannons (18-23, before being replaced by Stump Merrill). Weidemeier was in player development for the New York Yankees in 1989-1990.
From 1991-1995, he was a Cleveland Indians scout in the eastern USA and Latin America. From 1996-1998, he was an advance scout for the Chicago White Sox. He was advance scout for the Los Angeles Dodgers from 1999-2006, was special assignment scout from 2007-2008, then was advance scout again as well as special assistant to the general manager in 2009-2010.
Weidemaier was a Major League Advance Scout with the Arizona Diamondbacks for 2011. In 2014, when Diamondbacks coach Matt Williams was named manager of the Washington Nationals, he followed him to the Nation's Capital to become the team's defensive positioning coach. he was fired along with Williams and the rest of his coaching staff after the 2015 season.
Primary Source: 2010 Dodgers Media Guide