A little more than six weeks of NFL action have come and gone. While there is still a lot of football left to be played, shaky starts have sparked concern for several franchises. That concern doesn't stem purely from each team's record either, as momentum is often an even bigger factor.
Consider the Dallas Cowboys, who have lost three in a row heading into a pivotal NFC East matchup with the Philadelphia Eagles on Sunday. A defeat could break Dallas' confidence—in the team, in its season and in head coach Jason Garrett.
Should the Cowboys and other stumbling teams be reaching for the panic button?