We broke down the reasons to worry about all 32 teams last week. In an effort to be fair, let's examine at least one reason for optimism for each NFL team after two preseason weeks.
Arizona Cardinals:Ryan Williams returned to the field from his torn patella tendon last week. Beanie Wells will make his preseason debut this week. Williams showed surprising wiggle for a man his size coming off surgery. He ran hard, cut well and showed great balance. He could wind up leading this promising tandem.