No matter how Harper is hitting, that arm of his inhibits taking extra bases more than anything I've seen in a while, and I grew up with Dewey Evans. That, and his disruptive speed when he gets on, is enough for me to say he has to get the bulk of the innings in the field. Maybe there are rest day spots for Moore, but I kind of like having him, Bernie and Tracv as pinch hitting options off the bench.