Fowler also brings a little speed to the line-up besides his OBP. So if you factor in Fowler and LaStella, two guys that have good OBP and very respectable averages, versus what Baez and Alcantara brought to the table last year (albeit sample size), I think the Cubs have accomplished what they were looking for.
The idea was to get guys on in front of the big boys and increase the OBP, and now, Maddon has an opportunity to play some different hands if he chooses to.
BTW, the Cubs offense cost them FAR MORE games last year than the CF defense did. If Fowler can make the routine plays he is supposed to, I will gladly take it.
It was basically a swap for Valbuena to fill a void and it also freed up a roster spot. Good trade for the Cubs.