Guerrero was the bench coach for the rookie-league Ogden Raptors from 2016 to 2017, before being hired to be the assistant hitting coach for the Philadelphia Phillies, a role which he held through the 2021 season.[3]
On November 9, 2021, Guerrero was hired by the San Francisco Giants to serve as the team's assistant hitting coach for the 2022 season.[4]
On November 10, 2024, Guerrero was hired by the Miami Marlins to be their hitting coach, ending his 3-season-long stint with San Francisco.[5] This move to Miami reunited Guerrero with now-Miami assistant general managerGabe Kapler, who was the Giants manager during the first two out of three years Guerrero spent with the team.