UZR's (and Most Other Defensive Metrics) Limitation in Year to Year Analysis

by Jeff Zimmerman on Aug 15, 2009 5:07 PM EDT on Beyond the Box Score

Defensive metrics have been evolving for years. One of the major uses for defensive metrics is see how many runs a player saves compared to other players in a season. This value is added to the player's offensive contributions and the player's total contribution to his team is measured. A very...