At least one American League talent evaluator believes Mike Aviles is ''short at all three defensive positions'' as an everyday player. A report from CBS Sports last month indicated the Red Sox were seeking an upgrade over the current duo of Aviles and Nick Punto, so Boston may not be done adding to their infield. The Boston Herald notes that the Red Sox are firm in their belief that shortstop prospect Jose Iglesias isn't ready for a major league job with only 671 plate appearances in the minors. Iglesias is expected to start the season at Triple-A Pawtucket.