What can I do to improve my fantasy baseball team?

I can't really answer your true question as I don't have access to the other teams in your league for trading purposes nor your waiver wire. But, I can give you a couple reviews based on your team, even though a look at your draft order would be more helpful. I love Kurt Suzuki as a catcher, but hate his team. His full potential will never be reached and that's why I would only give a moderate 6/10 for Suzuki. Saltalamacchia needs to go. It is nice to have a backup for each position, but it is not in your best interest to throw somebody in your lineup on an offday when they bring hardly any fantasy value to the table minus a stray run/rbi. Youk is a great buy, and so is Pedroia in the new revamped offense for the Sox. I'm iffy on Cuddyer this year, but it isn't a bad pickup. Hanley is obviously awesome. Tsuyoshi is a good prospect, but I wouldn't expect much fantasy value out of him right away. He may just end up taking space for a while as he hits in the bottom tier of the Twins lineup. Heyward could be great, but watch for his slumps. Gardner will depend on Girardi's use with him. I loved his potential in the top 2 lineup spots last year, but when Girardi demoted him to the bottom of the order, his value plummetted. Watch for that. Swisher is overhyped. He is a great teammate/baseball player. He is a terrible fantasy risk in a loaded Yankees lineup. Gallardo may be ok, but he scares me in that division. Garcia needs more track record to win me over. Watch for him early on. Kennedy is terrible. I'd look into flipping him out for someone else. Great closers, but dump Meek. Pick up an inning eater/middle reliever.