The club parted way with eighth-year director of scouting Eddie Bane and three scouts: Jim Bryant, Jeff Scholzen and Bart Braun Jr.
Bane, 58, had been with the Angels scouting director since October of 2003. Jered Weaver, Kendry Morales and Hank Conger are among the players he was responsible for bringing to the organization. His replacement has not yet been announced.
Bane interviewed to become the general manager of the Arizona Diamondbacks this month but did not land the position. He was a special assistant to former Tampa Bay general manager Chuck Lamar for two years before joining the Angels.
Bryant was responsible for scouting Arkansas, Western Tennessee, Alabama and Mississippi. Scholzen covered Utah, Colorado and Southern Nevada, and Braun Jr. covered South Florida.
Angels general manager Tony Reagins was not available for comment.
"As a matter of policy, we don't comment on internal personnel decisions," vice president for communications Tim Mead said.
Scholzen was the scout who signed Brandon Wood in 2003. After Wednesday's 2-1, 11-inning win over the A's, Wood returned to his locker to find a missed call from Scholzen.
"He's a great guy," Wood said. "He knows baseball. In 2003 he came to my house and helped me signed my paperwork and had a lot of visits with me when I was in high school. He's the reason that I'm here today. It's real disappointing."