There is somewhat of a conflict here though. If we're going to put Nunez into the OF "here and there" it's going to cut into the number of games/innings JDM spends in the OF. (A good thing, BTW).
It's a hard call to say when JDM should be in the OF. The argument certainly can be made that if he (JDM) is going to play in the OF it should be in Fenway where LF is smaller rather than on the road where parks have a more spacious outfield. I don't ever want to see him there but if there's some kind of a wink-wink, nod-nod agreement between him and the club I guess we're going to have to live with it. OTOH we need to get JDM's bat into the lineup in the NL parks and the thought of having Hanley and JDM back to back there is enticing.
In thinking while I'm typing, possibly the best solution is to put Nunez in LF (and I don't know why I'm saying this when I've never even seen him in the OF) in Fenway when players need a day off, let JDM play in the OF in the NL parks, and hope for the best on those NL park days.