Just do the math- 3 of your categories (W, K, and IP) favor starters. One (SV) favors closers, and two (ERA and WHIP) are neutral.
I like lane_anasazi2's idea to add K/9, but I'd replace IP with it and keep K. K/9 slightly favors not just elite closers, but elite relievers in general. You'd end up with 2 neutral, 2 pro-starter, and 2 pro-reliever categories.
Now, I have to ask- who were people targeting for RP eligibility as starters? Because there aren't many of them, and most of the options aren't good. This year, I guess there are a few more than usual (Sale, Feliz and Luebke), but if someone wants to opt for a Felipe Paulino or Kyle Kendrick instead of a low-end closer like Street or Farnsworth, that'd be {b]fine by me[/b].
