Gotta make some trades and get younger at a few spots. I would test the trade market and see if I could get buyers on Kuroda or Scott Baker. Kuroda is young in service time but he's 36 in a keeper. Baker is having a good year but is oft injured. Names of 'under-performing' younger SPs I'd look at are Daniel Hudson, J. Zimmermann, Bud Norris, Matt Garza, etc.
I'd also try to sell those RPs. Doubtful you're going to compete in saves with only two closers and conversely I don't think you're gonna go out of your way to acquire saves via trade. Not to mention that both of these guys are older options. If you can sell them for a good haul, do it.