No manager is going to pinch hit for his starting SS in the 4th inning, regardless of the situation. Earl Weaver pinch hit for Mark Belanger in the first once, IIRC. At any rate, how about the 6th inning down by three with a runner on second? Mind you, DeRosa is on the bench, and Theriot can move over to SS. For that matter, why is Izzy even in the freaking lineup?