How many more elite defenses are on Texas' schedule?

The Texas Longhorns are 4-2 entering week seven and have already played two of the toughest defenses in the country. In fact, Texas is the only school to have played two of the three best scoring defenses. They can't play all three since the Longhorns are the third team in that group. What does Texas face on the rest of its schedule? Let's take a look and see how strong the remaining opponents are defensively.