I can see both sides to the Murphy debate. However, if AA can get a legit SS for 160 games by giving up a catcher who only plays 90 games (and save payroll space), he has to make that trade.
Does that SS trade exist? No idea, but if it does it needs to happen.
AA's primary target should be Tucker, and this is the time to go ahead and win a bidding war. The window is closing, so who cares if they are paying someone like Tucker on a bad contract during the rebuilding years? Rotating Acuna/Tucker/Profar through DH would be ideal.