ESPN’s annual tier quarterback rankings is out which is created by ESPN’s own Mike Sando. What Sando does is ask anonymous league insiders about how they feel about the best quarterbacks in the league.
Sando explains the tier rankings as the following:
Tier 1: Can carry his team each week. Team wins because of him.
Tier 2: Can carry team sometimes but not as consistently.
Tier 3: Legit starter but needs heavy run game/defense to win.
Tier 4: Might not want this guy starting all 16 games.