Wallach, 56, has been the Dodgers' third-base coach since 2011. On Tuesday, the Dodgers picked up his option for next season. The Dodgers also have granted the Tigers permission to talk to Wallach.
Wallach joined the Dodgers' major league staff after two seasons as manager at triple-A Albuquerque. In 2009, he was honored as Pacific Coast League manager of the year, and Baseball America selected him as the league's top managerial prospect.