Medlen and Vizcaino Boost BullpenQUOTE]
In all honesty, I would prefer Vizcaino to go back to the minors and focus on being a starter; there are competent replacements for him in CMart and Jairo, and both of these are out of options. Not to mention Varvaro, Gearrin, and the like.
In a year, who knows how many of the current starters will be gone (Hudson back issues, JJ traded, Hanson getting expensive), and not entirely sold on Teheran yet. Not to mention the increased trade value of Vizcaino as a starter if he were to leave.
My idea for the pen, in terms of most to least important I'd have, and assuming Moylan isn't ready.
Kimbrel, Venters, O'Flaherty, Medlen, C-Mart, Varvaro, Fish/Ascenio (the other one will be gone due to Rule 5/options).
Vizcaino can be brought up in September again, I don't want to see him in the pen period this year before then- no need, Gearrin deserves a shot first, and you've got Moylan when he's ready.