Which team made all the right moves to win in 2017?

We still have more than a month to go until the official start of spring, the vernal equinox, but baseball fans go by a different reckoning than the astronomers. For us, spring training means spring, even if there's a foot of snow on the ground -- and no scientist or groundhog can convince us otherwise. To wrap up the winter festivities, I asked ZiPS to evaluate team winters based on 2017 wins resulting from trades and signings by estimating the projection difference between two depth charts:...