Brian Smith had some updates on the set up of the rotation for 2013 (all links via Twitter):
*Bo Porter will determine SP1 towards the end of Spring Training (of course, either Harrell or Norris).
*One determination is Norris' strength at home vs. away.
Which is totally valid. On the road in 2012, Norris allowed an .889 OPS-against (.293/.379/.509), and just a .557 OPS-against at Minute Maid Park. Harrell had a much more manageable .713 road OPS-against in 2012, and a .663 home OPS-against. This is notable, as SP1 would get two home starts to start the season, and SP2 would get the first road game of the season at Seattle on April 8.
*Porter said that Humber is clearly working his way into the rotation, but...
*The 3-4-5 spots have yet to be determined.
*Porter has also talked to the pitching staff about "picking up the pace," thinking that it could be leading to poor fielding.