My only comment on the Rfaela deal, especially in September is that he is slightly built (5'9"/165??) and has played a full season ( 150 games and still counting) . He has played 2 demanding positions well enough that management has not seen fit to sit him down. That's all to his credit .
The swing/miss choices and OBP are poor. But consider, young Caribbean basin players, including DR are looking at a chance in a 1000 to get out of their countries and enjoy generational wealth for likely a large family . They were not going to get signed for walking or bunting. Swing the bat, something may happen.
I think Cedanne, Abreu, Devers, and Guerrero for BJ's are examples of this. Rafaela's contract was a year premature and should have been dependent on his self improvement.