The Padres haven't received much offense from the left side of their infield -- or any position outside of first base, really -- but I'm not sure that Miguel Tejada is an upgrade over the sort of players they've run out there. Tejada's bat speed has slowed dramatically in recent years, and his power has gone with it, as well as his patience at the plate. He's only played third for Baltimore this year, but San Diego has a young third baseman in Chase Headley who needs to play every day to develop, even though he's struggled after a hot first few weeks (his line over his last 350 PA is .247/.301/.353, which even Tejada can beat right now). Unless Tejada finds a fountain of youth in La Jolla, I don't see this being worth more than a win to the Padres the rest of the way. Wynn Pelzer is a good inventory arm, a future reliever who has trouble repeating his delivery and thus has struggled with command and control. He'll touch 94 mph but has never quite recovered the velocity he showed as a college freshman, when he was touching 96 and above and looked like he'd be a first-rounder after his junior year. He's a good arm for Baltimore to add given what they gave up, but not so good that the Padres are likely to regret giving him up down the road.