The Dallas Cowboys have gotten off to a 2-2 start, partly due to inconsistent play from the offense. The defense has been much more reliable, keeping them in all of their games so far. But there may have been some signs of trouble against the Detroit Lions, even though that wound up in the win column. Now they are headed for a Sunday night game at the Houston Texans, with Deshaun Watson and another pretty high-flying offense. And like Detroit, Houston is a one-win team looking to keep its season from getting worse.