Questions and answers on bad decisions

In the past two weeks, I have received dozens of e-mails about my Aug. 8 bad decision metric article. Most of the e-mailers asked that I go into greater detail as to what constitutes a bad decision or explain some seeming discrepancies in the metric. These e-mails generally can be split into a few topics I will detail below.

Explain why a quarterback's bad decision total is sometimes lower than his interception total.

The best question along this line came from an e-mailer named JK who asked why Tom Brady had only four bad decisions when he threw fourteen interceptions. The problem with this line of thinking is that it assumes the quarterback is always responsible for an interception. This obviously isn't the case, as there are many things outside a quarterback's decision making that can cause interceptions. The best way to illustrate this is to detail what caused each of Brady's fourteen interceptions last year: