When we found out on Friday that Xavier Nady would require season-ending Tommy John surgery for the second time in his career, the Yankees officially lost some depth. I couldn’t help but think Mark DeRosa made even more sense. He can play the corner OFs and everywhere in the infield. The Yanks never really got a chance to pursue the option, though, as St. Louis acquired DeRosa yesterday for reliever Chris Perez and a player to be named later. Perez, who will turn 24 on Wednesday, is a strike ’em out or walk ’em pitcher, averaging over a strikeout per inning but also over five walks per nine innings in his ML career. One would have to hope the PTBNL is someone of significance.