Unless I'm reading this wrong, while the switch described in the original post, i.e. putting a pitcher at a position for only one batter and then switching him back in the same inning, can't be done, but as long as it's done only once per inning, the switch of a pitcher to a field position is legal as long as he isn't switched back into the pitcher spot until the next inning/ The part that says "other than pitcher" makes me think he can go back to pitcher in the same innings. He could not go from pitcher, to LF, to RF, back to pitcher. Or, he couldn't go from pitcher, to LF, to pitcher, and back to LF in the same inning. But he could go pitcher, LF, pitcher. I'm pretty sure that's right. Or at least that's how I read it.