Jon Jay is currently a release candidate IMO (although Hahn likely sees otherwise), OF is too crowded with frankly better options in Leury, Delmonico, Palka and hopefully Eloy by May
Alonso frankly cuts into Abreu's time at 1B and takes ABs away from Palka, if this were a competing team an infield of Abreu, Moncada, Machado, Anderson with Yolmer and Yonder off the bench, I wouldn't mind Alonso, but it's not, this is a year to develop and Alonso should be moved by the deadline and probably will be
Doubt either of them make it through the season as long as Hahn is somewhat competent