Also, there are some good reasons to call a draw play every now and then on third and long.
1) You can catch the defense by surprise and run for a first down while everyone is going after the quarterback.
2) You slow the pass rush down a bit because they have to be aware of the draw play.
3) A draw play is really safe and avoids a sack or interception.
Face it. Capers is a defensive minded coach. Defensive coordinators love third and long because they have the offense in a bind and the defense has a chance to make a game-changing play through a sack or interception. So in a lot of third and long situations Capers is going to play it safe by going with the draw play and hoping to win field position with a good punt and a good defensive series, hoping the offense can execute better in the next series by not getting into a third and long situation.