Projecting a 28 year old to be in full decline in two years is just obtuse. Making another Denard Span trade, while somewhat defensible in principle, seems like a silly thing to base your argument on given the results of it so far. Pierzyski was dealt because of this guy named Mauer, not because the team sold high. So, again, a bad example. Dozier had no one ready to take over for him, Polanco was at least a year away. Now, had Dozier continued to be good until now, in the middle of a terrible season, you'd be right. But last year? No. That's just not a defensible way of running a team.