Diary of a Yankees fan: Aaron Boone, the longtime manager of the Yankees, whose tenure is a roadblock, is seeing his valued coaches leave for greener pastures. The latest is bench coach Brad Ausmus, who agreed to become the manager of the Houston Astros on Nov. 11. He joins AAA head coach Shelley Duncan, who left to be on the coaching staff with the Boston Red Sox. There will likely be more defections.
Aaron Boone, Diary of a Yankees fan, suffered a big loss when his father, Bob Boone, died on Nov. 10. The 78-year-old was the father of Aaron and brother Brett. He is also a former Major League Baseball player. His father, Ray, played in the Major Leagues. Aaron’s son is in baseball, so 4 generations of the Boone family have been employed by Major League Baseball. Do you think baseball talent is hereditary?
Diary of a Yankees Fan #25; Roadblock as Brad Ausmus is Hired to Manage the Astros

The Yankees are suffering coaching defections, as on Nov. 11 Brad Ausmus, the former bench coach of the Yankees, agreed to become the next Manager of the Houston Astros. This comes on the heels of last week’s news that the AAA Manager, and former Yankee Shelley Duncan left to join the major league coaching staff of the Boston Red Sox.
Aaron Boone
When a team has a coach in that position as long as Aaron Boone has been the Yankees’ manager, you see coaches leaving for the upward mobility they want. Aaron Boone has managed the Yankees for 9 years, and it was announced that he will return for his 10th season in 2027, if there is a season. It could be argued that you want coaches to be desired and hired elsewhere. However, it hurts the Yankees that members of the brain trust are leaving. Aaron Boone has overstayed his welcome, Diary of a Yankees fan.
Brad Ausmus
Brad Ausmus was the 57-year-old bench coach of the Yankees. He agreed to become the manager of the Houston Astros, and who can blame him? He was blocked by Aaron Boone. He was an experienced and valuable coach for the Yankees, Diary of a Yankees fan, who was the bench coach since 2024. He was also the bench coach for the Oakland Athletics in 2022. Previously, he served as the manager for the Los Angeles Angels (2019) and the Detroit Tigers (2014-17).
Shelly Duncan
Ausmus is not the only valuable coach who has left the Yankees, Diary of a Yankees fan. Shelley Duncan, who managed the Yankees’ Triple-A Scranton/Wilkes-Barre affiliate the past four seasons, is headed to join the Red Sox’s major league staff under manager Chad Tracy. Duncan has told every Yankees player who graduated from AAA to the Majors that they made the team. He leaves just as the Railriders are about to change their name to the Highlanders, harkening back to the Yankees’ previous team name. There is some upward mobility with the Red Sox for Duncan, so one cannot blame him either.
Conclusion: Losses Amid Loss
Ausmus and Duncan are two coaches who have left the Yankees in the past week; Ausmus on Nov. 11, but they will not be the last. The coaches are leaving for greener pastures because they are blocked. They are blocked by Aaron Boone, who has been the manager of the Yankees for the past 9 seasons. He will be back for a tenth season. He has overstayed his welcome, Diary of a Yankees fan. This comes amid a loss for Aaron, whose father, Bob, died on Nov. 10 at the age of 78.
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