I guess if you truly believe that Aaron Sanchez will become a legitimate #2 in a quality rotation, it's not a good idea. I can't help but think that landing Shark with an extension for Sanchez plus a lower level B prospect would help propel this rotation.
Look, I get it. I don't like the direction this team is headed in either. I'd rather blow it up and take on prospects too for guys like Bautista, Reyes and Edwin. I just don't see AA going the Miami Marlins route a year and a half after he was on the other end of the deal.
Shark, along with healthy years from the entire staff and position players, and I do believe the team is close.
Also, Sanchez for Shark is nowhere near the same as Wil Myers for Shields, or the raping he'll give another team when he trades Price.