But the question is what to do with Abreu going forward if Vaughn rockets through the system or if Eloy doesn't get much better in LF while a minor league OF all of a sudden can replace Eloy in the OF. JDM more than likely has a shot at his last big contract which will require multiple years of commitment. Him at DH requires Abreu to play 1st base more, not less ,as most of us would like and keeps Eloy in LF. It also could block Vaughn if he does as many hope he can do. The only way JDM works is if Abreu signs for like 1 year at a time.
Also if you consider the AAV of Martinez it might hurt the chances of spending the money on pitching if we consider pitching to be the top priority and also limits upgrading other needs like BP ,C, OF and bench. Too many DH types means the bench would probably need to have 2 guys who can play IF and OF. He's also RH and that's not usually a problem when it comes to a great hitter but Abreu , Eloy and Vaughn are all also RH.