I would not pay for what Diaz and Jansen will be paid. I'm not aware of any on the trade market. It would mean we'd have to go light in CF, middle IF, SP and RF/1B/DH. I also don't think that is how Sox management views the closer role, either.
I think we continue to try and find a closer, via trade, who might not even be one, now. We won't find another Uehara, but that is how we will try to find one, IMO- like it or not. Hopefully, we will do more than Diekman-Strahm type signings- like 3 a little better or 2 a lot better. I'm thinking that is the best we can hope for, and maybe, this time, Bloom will strike gold.
Personally, I'd love to add a solid, "established" closer, but on a fixed budget, I can't see how we can fill all the other holes enough to keep us competitive. We'd just end up bitching about 1B, again, or CF, or 2B/SS or RF or DH or..., instead.