Jake Locker had the NFL's lowest Bad Decision Rate (BDR) in 2012.

BDR is a metric that calculates the rate in which a quarterback makes a mental error that leads to a turnover for the defense.

“It's significant in that it is quite rare to see a quarterback post a BDR of less than one percent,” KC Joyner said. “Tom Brady is the only passer to reach that level on a consistent basis, so it would be quite surprising to see Locker stay at that level but even if he triples his BDR, it would still be below the 2 percent mark that serves as the bar for superior play in this metric.”