After an exciting start to his career with the Cardinals, Michael Wacha struggled with injuries and fell off from his trajectory as a future leader of the Cardinals' staff.
After a really bad stint with the Mets and the Rays, Wacha experienced a career revival with the Red Sox, and continued the trend in 2023 with the Padres, posting a 3.22 ERA in 134.1 innings of work.
Wacha is unlikely to give a team more than 150 innings to a team any given season, but he's regained the kind of form that could really help the Cardinals' rotatoin. Like Bieber, he's not a top-two starter for their rotation. but he can be more than adequate as their number three next year.
Perhaps a return to St. Louis would be a welcomed move from both sides, and with the familiarity between them, perhaps a deal can happen soon.
My worry with jumping the market for a guy like Wacha is you may end up overpaying for a middle-of-the-rotation starter. I don't mind being aggressive for a potential front-end starter, but throwing extra money at a starter with a low ceiling is asking for trouble.