Historically, Zimm hits RHP and LHP better than Yadiel.
Career:
RHP:.267 .326 .456
LHP: .310 .386 .530
Though last year Zimm hit only .207 against RHP. Bell is a better platoon partner than Yadiel for Zimmerman.
I don't get the love-fest for Yadiel on here. He's a decent hitter but a terrible fielder at an easy position.
He's not a good enough hitter to be worth a roster spot as the short side of a DH platoon. He'd get what, 100 at bats in that capacity?