When reading analyses of trades past, it is very common to see the analyst insert the caveat that "we'll really know who won this trade in 3 years," or something along those lines.  Of course, it's obvious that the Yankees won that famous "trade" in which they bought Babe Ruth from the Red Sox.  Consider, though, that if Ruth had suffered a career ending injury in the first year following the trade, we'd never talk about it.  That wouldn't ...