I find it fascinating that Brady, Rodgers, Stafford and Ryan who have been elite QBs the majority of their careers are all suddenly struggling. If you look at the teams playing well, KC, Buffalo, Baltimore, Miami and Philadelphia, it is the QB's who are leading or near the top of their teams in rushing. Traditional running games appear to be ineffective and becoming extinct. Traditional pocket passers need to be complimented by running games. I believe this is the reason these QBs are all struggling.