Given that we have Span, a lefty who is a leadoff hitter, I don't like Harper batting 2d as much as Werth. My preference would be Harper 3d, RZ 4th, ALR 5th, Desi 6th, Danny 7th, and C 8th. It is left-right all the way through 6th, then switch / right. Very balanced and not force, without any guy out of a slot he can't handle. You could get fancier against a tough lefty, but as long as Span can handle lefties well, there is no need to move guys.