Every year, after the dust has settled from the regular season, we at LL like to look back at the year that was, and what that suggests about the year that will be. In past years, we’ve divided this up by position group; this year, we’ll be trying something new: examining the contributions of each player by age. The Mariners have a rep as being one of the oldest teams in MLB, thanks to an eternally-dry farm system and several top-heavy contracts. But who produces how much value, and at what age?
A note: throughout this series, we’ll be basing our calculations off FanGraphs for both Wins Above Replacement (fWAR) and the prediction system ZiPS.