I know that the rule regarding four 500+ PA and three 180+ IP seems somewhat arbitrary, and it is to some respect (i.e., I could have chosen 170 or 175 innings). I realize that this rule eliminates some really good options. But I was worried that there would be so few full-time SP's available that every team would end up with a 5 or 6 man rotation. Add to this the likely potential that everybody would have to platoon at 4 or 5 offensive positions, and still find enough roster spots to build a bullpen. We'll see how this works out, and in future versions, we can adjust accordingly.
I imagine that this will play out like an 80 or 90M league, with each team having 1-2 good SPs, a couple of solid hitters and mediocrity everywhere else.