Thought that these were interesting reads, very insightful and informative.
Note: The articles explain these graphs(and other graphs) more thoroughly. I suggest you read them.
Tier 1 CB's: http://www.rotoworld.com/articles/cfb/46190/349/peshek-cb-metrics-10
Tier 2 CB's: http://www.rotoworld.com/articles/cfb/46242/351/peshek-cb-metrics-20
Tier 1 WR's: http://www.rotoworld.com/articles/cfb/46006/349/peshek-top-4-wr-metrics
Tier 2 WR's: http://www.rotoworld.com/articles/cfb/46136/349/out-of-the-box
[ Edited by Timdiz on Feb 14, 2014 at 12:48 AM ]