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Yankees’ Triple-A manager Shelley Duncan joining Red Sox’s big league staff
Shelley Duncan is reportedly joining the Boston Red Sox’s major league coaching staff under manager Chad Tracy, moving from the Yankees’ Triple-A affiliate to one of their longstanding rivals. The appointment links a coach with a long history in the Yankees organisation to its major league competitor.
Duncan, 47, managed Scranton/Wilkes-Barre for four seasons, taking charge before the 2023 campaign and earning International Manager of the Year in 2025. A former Yankees second-round draft pick in 2001, he played three of his seven major league seasons with the club and later coached or managed in the Diamondbacks, Blue Jays and White Sox organisations. His father is former pitching coach Dave Duncan; his brother Chris played five seasons in the majors for St Louis.
In short
- Shelley Duncan is reportedly joining Boston’s major league staff.
- He managed the Yankees’ Triple-A team for four seasons.
- Duncan was named International Manager of the Year in 2025.
Explained simply
The Boston Red Sox and New York Yankees are two Major League Baseball clubs with a long-running rivalry. Their minor league teams develop and assess players who may later join the major league roster, while coaches can move between organisations.
Shelley Duncan has worked in both roles as a player and coach. He was drafted by the Yankees and played for them in the majors, then managed their Triple-A team, Scranton/Wilkes-Barre, for four seasons. Triple-A is the level just below the major leagues, where players and staff prepare for top-level baseball.
A move to Boston would bring Duncan into the Red Sox’s major league coaching group, led by manager Chad Tracy. His experience across several baseball organisations is relevant to that role, while his earlier ties to the Yankees give the appointment added context in the rivalry.