I keep reading numerous comments that Scioscia is a bumbler when he fails to place Trumbo at 3B, instead placing him in one of the outfield corners, and allowing Callaspo or Izturis to play third. I've read these comments even on days when groundball pitchers like Jerome Williams or C.J. Wilson are on the mound.
Just to summarize what we've experienced up to this point. Trumbo has started 8 games at third (only finishing 5, due to late inning substitutions). Over that short span, he has batted .292/.346/.375 –– a slash line pretty typical of Callaspo or Izturis in a normal season. He has 3 runs, 3 RBIs, while committing 4 errors, leading to four unearned runs, in aggregate. This does not account for typical balls that Izzy or Little Al might have nabbed, but which Trumbo failed to get to. To put it short, Trumbo has nearly neutralized his offensive output with his glovework, such that is.
So yeah, Scioscia might be a bumbler, but it's not because he's limiting Mark's appearances at third. If anything, Trumbo should be taking more ABs away from a certain leftfielder.