I like the wait and see approach. It's possible that our hitters will return to 2016 level.
Signing Nunez would be a significant improvement. DH role can be shared between Devers, Nunez, Hanley, Travis, Pedroia, even Xander.
Having Nunez will allow us to shift players around.
Season is too long and you need flexibility for injuries.
I just don't want to commit to a long term deal unless you do a Chris Sale type deal, say someone like Votto.
With Wright coming back, our SP unit should be deeper. There's also hope for Carson Smith being 100% and Thornburg becoming available some point doing 2018. Workman should also be be fully recovered so our bullpen for at least another year should be okay (Kimbrel's option year).