Actually, according to DVOA, Seattle is 17th, Houston is 27th.Seeing how we're ranked 25 in total D & Seattle is 26th... I'm going to say Clowney who?
Clowney & Mercilus are sidekicks, Robins... neither are Batman.
PLEASE let's get off the old standard of ranking offenses and defenses based ONLY on yards. The Chargers don't have the 4th best defense, as yards allowed would indicate. Instead, they're 21st.