ah right forgot about the ghost runner. But all the more reason to keep a guy who can pinch-run, pinch-hit or double-switch in an extra-innings game then.
I think Harper will play 1B full-time. Maybe he misses one per series. At this point they are past needing to test his ability to do it and more into resting him so he'll be able to do it, I reckon.
Cave would presumably PH for Rojas and then move into LF a few times. I could see them doing the Pache/Rojas OF against a lefty once or twice though. It's just hard to tell what Pache is capable of at this point given how small the sample is and how much time he missed.