Realmuto/Grandal/Ramos(maybe) and Cutch/Peralta/Brantley are approximately equally productive players capable of filling C and cOF for a contending team. I am confident AA has identified these guys (plus a few others we haven't thought of) as potential fits, and I'm going to assume he will go with the best value available.
I would be fine with either of the C/cOF solutions above with good value being the paramount concern. I see no reason to pay market price for one of those players if another is available at a better value. I will, however, be extremely disappointed if AA doesn't fill those 2 voids with players at least that caliber...anything less should be considered a failure by the FO.
The wildcard is whether or not AA wants to spend even more resources acquiring a "frontline starter". While I generally disagree with that tired cliche, I would be all for it if a team overvalues someone like Newk, Fried or Allard as a significant "win now" piece. I'm also probably the low man around these boards on both Riley and Pache, so I wouldn't be too upset to see them traded if another team over values them.
I'm also fairly confident that 1 significant trade will be made, so if AA signs a FA C and cOF, I wouldn't be at all surprised to see that trade being for someone like Paxton. I am firmly against signing either of the top FA SPs.