I've heard a little bit about Mayberry. Some people love him, think he's one of the more underrated prospects in baseball. Others think he's unlikely to really be more than a bench player if he makes it to the majors. He has good power but lacks plate discipline.
Horrible deal on the part of the Phillies. Mayberry was good in the mid-1970s when he played for the Royals, but he's got to be almost 60 now. It's hard to envision him ever cracking the lineup. You have to wonder why on earth they would deal for him. Does 48183 Whitey Herzog work for the organization now, or something?