I didn't go through your pen, but I think you are over estimating your starters performance. A lot of your guys posted good ERA in other parks. Outside of your SP1 who will be anywhere between 2.40-2.90 in that park, I would guess your guys would fall in the mid to high 4.0's at best over the course of a season in that park. I would bet two of your bottom 4 finish in the mid 4, and the other two finish in the low 5's, due to statistical randomness.