Totally agreed. You can sacrifice some Hs right now to pick up an OF (via trade or FA). You could try to do something about David Wright, though I'd probably hang on to him to see what he does. 3B is very deep this year and there's probably someone like Vinny Castilla hanging out on the FA market to replace him if 3B becomes a problem.
Otherwise, I like your roster. I think you've focused a bit heavy on Holds, but this makes for good late season trade bait b/c once you feel that you have it pretty close to locked up, you can dump an RP or two for whatever your problem spot may be at the time.
Also, I like that you've chosen a few guys who are definitely just hold guys (King has 1 Save in 5 years) and a couple of guys who will probably pick up some Saves and some holds like Worrell and Otsuka.
"... gas prices are headed through the roof, everyone in the Middle East hates us, Toronto and Seattle are in last place -- happy 1978, everybody!." - Bill Scheft, Sports Illustrated, April 26, 2004