Simms' Hidden Truth: The Secret Behind Patriots' 3-0 Start Without Tom Brady

Despite playing without perhaps the greatest quarterback of all time in Tom Brady, the New England Patriots sit atop the NFL at 3-0.

What has been the secret to New England's success sans Brady? What lessons did the Patriots staff take from last season? Which team poses the biggest threat to New England? 

Watch in the video above as Bleacher Report NFL Analyst Chris Simms joins Adam Lefkoe to discuss.

All advanced statistics via Pro Football Focus.