The efficiency ratings (adjOEPA and adjDEPA) are the point contributions for the offensive and defensive units, respectively, to a team's opponent-adjusted scoring margin per game. Teams in the upper-right quadrant have both offenses and defenses that have a positive net contribution.
Hover over each team's logo to find the raw numbers. Use the "BCS/Non-BCS," "Bowl Game" and "All Bowl Teams" filters to narrow the amount of teams shown on the chart. Double-click anywhere on the chart to zoom in on a particular area.