From 2006 through 2010, Sagara served as an assistant scout for the New York Mets.[2] He served as a scout for the Atlanta Braves from 2010 through 2012.[2] Sagara then joined the Miami Marlins organization and from 2011 through 2015, served as a pitching coach in their minor league system.[2] Sagara was the Marlins assistant pitching coordinator from 2016 through 2017.[2] Sagara was hired by the Chicago Cubs and served as their minor league pitching coordinator for the 2018 and 2019 seasons.[6] Sagara was then hired by the Texas Rangers to serve as the pitching coach for the Nashville Sounds in 2020.[7] He instead served as special assistant for player development at the Rangers 2020 alternate training site.[8][9]
On October 26, 2020, Sagara was promoted to co-pitching coach for the Rangers, alongside Doug Mathis.[10] The Rangers dismissed Mathis after the 2022 season and offered Sagara a different position within the organization.[11]