Between 2000 and 2004, Scott worked as an analyst for a baseball simulation software company called Diamond Mind, Inc.[2][3]
In 2004, he joined the Boston Red Sox as a baseball operations intern and later, in 2005, became an assistant.[1][2] Between 2006 and 2011, he served as an assistant director of baseball operations.[2][5] In 2016, he became the vice president of baseball research and development.[1][3]
Theo Epstein, former general manager of the Boston Red Sox, credited Zack Scott for identifying Dave Roberts as a trade target.[6] Roberts later stole a base in a key game on the run to win the 2004 World Series, the first championship for the Red Sox in 86 years.[6] Scott is also known for recommending Koji Uehara, the elite closer for the 2013 World Series champ Red Sox.[7]
In December 2020, Scott joined the New York Mets as an assistant general manager and senior vice president after working with the Boston Red Sox for 17 seasons with the last two seasons as the assistant general manager.[2]
In January 2021, he was promoted to the position of acting general manager of the New York Mets replacing Jared Porter.[8]
In November 2021, New York Mets parted ways with him, though Mets president Sandy Alderson, called him a "good man who did excellent work".[9][10]
In January 2022, Judge Eric Press acquitted Scott of a DWI charge and a lesser charge of driving while ability impaired (DWAI).[11] After reviewing the body-camera footage, Judge Press concluded that he was not asleep (his head was down only because he was using his cell phone in his lap) and was clearly not intoxicated.[11]
In 2022, Scott founded a consulting firm, Four Rings Sports Solutions. Through Four Rings Sports, he was a consultant for the Texas Rangers from January 2023 however is no longer retained as such. Prior to that, he consulted for both the Pittsburgh Pirates and the Pittsburgh Penguins.[12][13][14]