Defensively Valdez can do some impressive things. He has good range and a strong arm (not Jose strong, but its good). He can move both ways with good range and from the little I've seen of him makes good, strong accurate throws from the run.
Offensively the walks are a concern, but I could definately see him having some effect at the major league level next year. To think the Sox got him for Koch is another positive, but yes, his lack of walks is tough. Ozzie was a huge influence on him in the Marlins organization.
Dan Evans Sucks...I'll take Ken Williams any day of the week over that bum.