Gerardo Parra — of “Baby Shark” fame — will be the new first base coach for the Washington Nationals as part of a series of changes to manager Dave Martinez's staff announced by the club on Friday after a fourth consecutive last-place finish in the NL East. Miguel Cairo will be Martinez's bench coach and Ricky Gutierrez is shifting to third base coach after holding the title of run prevention coordinator in 2023. Chris Johnson was hired as assistant hitting coach.