Even for a 6 team league you are stacked!
I would look into an upgrade at second base (probably shopping Votto to do so).
I might also look to shop an OF (Cruz or Cain) for another closer while waiting for Street to come back. You may be able to get Chapman a little cheeper now.
Any deals that you have, post 'em up here and we'll help you shock everyone with your hithero unsuspected baseball knowledge.