No, what specifically about being moved around the lineup between 5 and 7 do you think causes a problem? His pregame routine is the same, right? The pitches he sees are basically the same, right? His approach in any given AB is basically the same, right? (And if not, that would change much more as a function of game situation (score, inning, # outs, runners, etc) than lineup spot, and that effect would be there even if he hit in the same lineup spot all year long.) So what specifically would make it so challenging to hit 5th one day, 7th the next, then 6th, etc? What's changing?