The axes cross at "league average" positions, meaning the graph is divided into relatively even quadrants.
As one would expect, twinn'd Manchester clubs appear to have the greatest cumulative combination of offense and defence, Chelsea's numbers lessened by a misfiring striker and ill-fated flirtations with seductive foreign managers (their 2010 season was probably the most efficient EPL club season in recent history).
Click on the graphic to enlarge.
|(c) Balanced Sports|
As always, thanks to Ben Mayhew at Experimental 3-6-1 for the idea, sourced over a year ago.