After six seasons McD's results should be evaluated only against other coaches, past and present who have the advantage of one of the elite QBs in the league. Comparing him to Andy Reid / Dononvan McNabb is far less relevent than comparing him to Andy Reid/Patrick Mahomes. There are a number of instances of QBs who went to many playoff games with one head coach but only won a championship after a change in head coach. Peyton Manning, John Elway are the two most prominent. Did things finally "click' for him in his tenth season, or did Mike Shanahan have a skill set Dan Reeves did not?