The Arizona Diamondbacks enter a critical offseason following the 2026 campaign, with front office decisions set to shape the team's competitive window. All-Star second baseman Ketel Marte remains the centerpiece of the roster after another strong season at Petco Park and throughout the year.
General manager Mike Hazen must address several roster questions, including starting pitching depth, bullpen reliability, and offensive support around Marte. The team's performance in 2026 will heavily influence whether the Diamondbacks pursue aggressive upgrades or maintain continuity with their current core.
Free agency and trade markets will test Arizona's willingness to invest in immediate contention versus long-term flexibility. Key arbitration-eligible players and potential contract extensions add further complexity to the offseason calculus.
