Right, Polanco does not fix the offense, because he and Julien are nearly the same on offense. We were talking about offense...not sure how to make that more clear. If you want to fix the offense, then subbing Polanco for Julien does not do that. They need to fix 3B and all three OF spots (well, those are the spots most fixable anyway, no one expects to fix all three).
No place did anyone anoint Julien a STAR. No place did anyone say he was an overall better player than Polanco.