It isn’t always fair to compare athletes, even if they play the same position in the same league and in the same division. But like it or not, for 10 years in the NFC North, that natural comparison has come down to the two mainstays at quarterback: the Detroit Lions’ Matthew Stafford and the Green Bay Packers’ Aaron Rodgers. Certainly, Lions fans would love Stafford to emulate the success that has led Rodgers to winning a Super Bowl and being a two-time NFL MVP. But after Rodgers called out some of his young receivers for “piss poor” playTuesday, it’s fair to wonder whether Lions fans might also want to see the normally easygoing Stafford mimic some of Rodgers’ fiery attitude. Rodgers’ disgust