Not unless he makes the last out of every game (or, more accurately, the last out occurs during his PA but before the next guy's PA is complete). I look at it this way. Suppose you had a lineup of equally talented hitters. The odds would be 1/9 in any given game that any particular hitter makes the final out. So, one out of 9 games, #1 gets an additional PA relative to #2, and so on down the line. 162 / 9 = 18. Moving someone up from #2 to #1 would get him 18 more PA. Moving up from #3 to #1 would be 2*18=36. Moving all the way up from #9 to #1 would be 8*18=144. I think that's the '8' you were looking for. Of course talent is not equal, and is purposely not distributed randomly through the lineup. But as a first-order approximation I'd go with that. "Your leadoff man gets 18 more PA in a season than the 2 hole." And on down the line.