Tony Fernandez, who was the Texas Rangers' special assistant to general manager Jon Daniels the last three seasons, will not return in 2015.
Fernandez, a five-time All Star and a four-time Gold Glove winner, was hired in the spring of 2012.
The Rangers have made several changes to the front office in the last few months.
The team hired former player Michael Young as an special assistant to the GM after losing assistant GM A.J. Preller and senior special assistant Don Welke. Preller became the GM of the San Diego Padres and Welke joined him under the same title.
However, ownership remains committed to the top of the front office chain where Daniels and assistant GM Thad Levine received three-year contract extensions last week.
The moves have meant more responsibility for Levine, who has picked up some duties involving the scouting and signing of international players.