MLB Chief Operations & Strategy Officer Chris Marinak is leaving the league office after 17 years, according to reports.
The Sports Business Journal reported Marinak left the position to pursue new opportunities.
Marinak, 45, was considered by industry folks to be a candidate for MLB commissioner before a memo was to MLB staff members Tuesday about his departure at the end of 2025.
Marinak will depart as MLB chief operations and strategy officer after joining the league office in 2008.
The exec was a a key figure in the introduction of instant replay and other on-field changes, including the processes that ultimately led to the pitch clock, per The Athletic.
Marinak is expected to announce his new position in the new year.
