Key member of Aaron Boone's coaching staff makes decision on future with Yankees
Sources: Sean Casey was a fav among Yankees vets, but there was some disconnect between his teachings and what was taught in the minors, & some in/out of org speculated if that
Yankees' Sean Casey pursuit began way before hitting coach's recent hire
Casey Stengel - Wikipedia
How Yankees new hitting coach Sean Casey plans to fix offense
Yankees hire broadcaster Sean Casey to replace fired hitting coach: 'Big personality full of positive energy'
Sean Casey says he won't return as Yankees hitting coach - ESPN
Yankees' Sean Casey drops truth bomb on Anthony Rizzo's 'power outage
Aaron Judge ready with suggestions to improve Yankees
Sean Casey on new role with Yanks, 07/12/2023
Sean Casey walks away from two-month trial as Yankees hitting coach
Yankees hire new assistant hitting coach: Hensley Meulens - Pinstripe Alley
Former All-Star Takes On Role As New Yankees' Hitting Coach
Yankees announce 2022 coaching staff additions, including Eric Chavez - Pinstripe Alley