Outlining average defense is a lot more difficult than it appears. Totals can be really subjective. When teams are behind the opponent will usually run the ball. Therefore, the numbers will be skewed that way. Of course, the vice versa is true. However, if we include enough numbers and averages we can get an idea of where the Houston Texans and any other team are at.
DeMeco Ryans coached the number one defense in the NFL. If we look at the San Francisco 49ers numbers in comparison with the Texans we can also get an idea of what DeMeco might need to get the Texans defense on that level.