Overplaying the Percentages?

In last Friday's game against the Marlins, Phillies manager Charlie Manuel started Greg Dobbs at third base. Dobbs, a left-handed batter, has had a record-breaking season as a pinch hitter and leads the team in batting average, but he only starts against right-handed pitching as was the case on this September evening. In his first at-bat, Dobbs homered to right. In his second at-bat, he hit a long double to left center. In his third at-bat, well actually he didn't have a third at-bat. With the Phils down, and a southpaw in for Florida, Manuel pinch hit for Dobbs with right-handed batter Mike Cerverak, a utility infielder who has spent most of the season in the minors. Now the Phillies are ever so close to clinching the playoffs and surely Charlie Manuel deserves some credit for that, but isn't this carrying percentage baseball a little too far?