USSMariner should be a daily read for all, but if not, be sure to check out some notable Rule V players available. (Conor Glassey, the author, is currently working for Baseball America.) The only ones the Cardinals might have interest in would be the LH relievers given that their current options are Manning, Ostlund and perhaps Miller. Not an inspiring group.
My prediction for the Cardinals draft is — no one. There’s not an obvious need with an obvious player to fill it or somone who really projects as major league ready that they could poach. I’d like for them to grab a lefty but it’s not a real “miss” if they don’t.