As I've said before I'm in no rush to trade Dozier but what is better? 1. Dozier at second, Polanco at short, and a below replacement level starting pitcher. Let's say Dozier is a 5-6 WAR player. Polanco is a 2-3 WAR player. The starting pitcher is a -1 WAR player. That's 6 WAR on the low end of things. 2. Polanco at second, Escobar at short, and a promising 2-4 WAR starting pitcher. Polanco is a 2-3 WAR player. Escobar is a 2-3 WAR player. The starter is a 2-4 WAR player. We, again, end up at 6 WAR but I think the second result nets you more wins. It's a matter of finding that promising young pitcher, which isn't easy to do. Teams are loathe to trade that guy in most cases.