One of the biggest needs for the A's this offseason is adding some veteran arms. The pitching staff was filled with inexperienced arms in 2026, and it really showed, as the team finished with the worst bullpen ERA in all of baseball.

The offseason has just begun following the Brewers' first World Series Championship. Following the win, the A's have poached Cam Castro from the Brew Crew to become their new general manager.

Castro became the team's GM on Wednesday, and they have been without a true GM for a few months since they mutually parted ways with David Forst .

Now that the A's have a new President of Baseball Operations and GM, they will work together to add some pitching to the needy staff. The first thing they can do is look to add this veteran arm to their bullpen.

Blake Treinen Could End His Impressive Career With the A's

Aug 16, 2019; Oakland, CA, USA; Oakland Athletics relief pitcher Blake Treinen (39) reacts during the seventh inning against the Houston Astros at Oakland Coliseum.…