Your team is slow, old, and has questionable health.
Sanchez, Lowry, Street, Hafner, Durham, Nady and Rolen are all either coming off an injury riddled season or have a history of health problems. And no one has speed, save for Lofton who probably won't even see 350 AB's in Texas' crowded outfield.
Pitching is decent, especially for a 16 team league, but none of your starters will help your WHIP.
If I were you, I'd package your closers in a couple of trades to upgrade your OF, middle infield, and starting pitching (in that order of priority) and then grab the best reliever you can find that will keep your pitching ratios down.