effective cap space is current cap space minus the minimum amount of space it would take to fill out a roster.Can you explain this to me in English please lol
The X access is the draft pick values based on the 5 year approximate value per PFR of players selected at or around that draft pick historically. It was developed by Chase Stuart, who describes it here:
http://www.footballperspective.com/creating-a-nfl-draft-value-chart-part-i/