The Buffalo Bills have long stood in the looming shadow of their AFC East rivals, the New England Patriots. But now, with Tom Brady departed for Tampa Bay, the division is up for grabs for the first time in nearly a decade. For the Bills, it all comes down to third year quarterback Josh Allen, who's earned his fair share of admirers and skeptics in an up-and-down career thus far. ESPN Bills reporter Marcel Louis-Jacques assesses Allen's strength and weaknesses, and explains how Allen's improvements could mean this is the season Bills fans have been dreaming of.