He has some potential as a starter if he gets his fastball command.

Arenado is over the hill. He can still pick it at 3rd but his production is down both in terms of output and input with the bat.

And he’s a pure pull hitter. Basically a poor man’s Isaac Paredes.

He doesn’t strike out though.

Seems like perfectly reasonable deal on both ends. Cardinals were always gonna have to pay off a ton of money and Martinez is a solid return for it imo.