Molitor, 61, orchestrated an impressive turnaround in Minnesota that saw the Twins jump from 59-103 and a fifth-place finish in the AL Central in 2016 to 85-77 and second in the division in 2017.
Minnesota became the first team in major league history to make the playoffs after losing 100-plus games the prior season. The Twins lost to the New York Yankees in the AL wild-card game.
Molitor is a member of the Baseball Hall of Fame after 21 major league seasons as a player, including three with Minnesota. He posted a .306 career batting average with 3,319 hits, 234 home runs and 1,307 RBIs in 2,683 games.