With perfect health and players performing to their high-end ceilings....the team could be very good. If you take each players best year, and insert all of those numbers into a lineup of Anderson-Moncada-Eloy-Robert-Vaughn-Grandal-Benintendi, that team can hit the hell out of the baseball. Same goes for the pitching staff.
The problem, of course, is that both of those things are totally unrealistic. Staying on the field has been a huge problem for most of the guys listed above, and we haven't seen those "high ceiling" numbers from a number of them in a while.
So do with that what you will.