Is this roto or h2h? I think you're looking pretty damn good on offense. Tejada's not perfect, but he's good enough combined with the rest of your team. You probably won't be first in steals, but you might be first in every other category.
Pitching is where I would focus. If I were you I'd look for more Ks, it looks like you'll be light in that cat. And closers as they pop out of the wood work, but I agree with above, no need to trade, just stay up to date on the closer news.
Team looks very solid, standing pat at this point would be a pretty decent move on your part, then I'd just pay close attention to pitching as the season gets underway.