There is only one pitcher on that list that can give you 15 wins's every year for the next five years, Pettitte. Time to toss the old guys to the curb, The Ortiz's run a close second. Lawrence and Sabathia toss for 2 deplorable teams that show no sign's of improving.
Wins are the hardest thing to predict in Fanatsy Ball, they require a "team effort". Pettite pitches in the most lopsided division and is secure in his job with the best team 160.00 mil can buy. I say you could write in 15 wins easily for him every year for 5 more years.