Here is an example of the Wins Above Replacement Player spectrum based on the 2011 season:
Excellent - Jose Bautista 10.3
Great - Hunter Pence 5.2
Average -Gaby Sanchez 2.0
Poor - Adam Lind 0.5
Horrendous - Adam Dunn -1.7
WARP components can be found in this article, which also describes 2015 changes to FRAA: http://www.baseballprospectus.com/article.php?articleid=27944
Player value depends heavily on your assumptions, and particularly on how you decide to measure and compile a player’s supposed contribution.
Are we looking the wrong way at shifts up and down the defensive spectrum?
Or, would the Yankees be better off starting Derek Jeter or Brendan Ryan at shortstop?
Why and how replacement level has shifted over time.
Or why none of the alternatives to replacement level works as well.
How we can acknowledge uncertainty while minimizing it as much as possible.
How accurate can we be when comparing hitters’ performance?