Okay first i disagree with any theory. If u have a GS limit u want great starts every time out, thus u need to get quality starting pitching. U dont have enough!
As for too many closers, again u need quality closers. Your top 3 are solid for now, but the extra ones may come back to bite your era/whip.
As for the offence, depending on League size u may need more power.
Just traded BButler, BWood & JLoney for Mark Teixeira, Ryan Theriot & Renyel Pinto in a DYNASTY LEAGUE. Big gamble I know!