There’s nothing new about the Texans and a 3-4 defense. Coach Dom Capers installed the linebacker-heavy system during the franchise’s expansion years. Coordinator Wade Phillips returned the attack in 2011. Romeo Crennel fine-tuned his bigger, stronger version last season, when the Texans finished seventh in the NFL in points allowed and 10th against the run. The team has also utilized oversized, overpowering nose tackles before. The 6-3, 310-pound Earl Mitchell in 2013. The 6-2, 340-pound Ryan Pickett last year. But the Texans have never had anything or anyone like Vince Wilfork. Neither has J.J. Watt. Which is why the on-paper version of the team’s 2015 defense is already being hyped as the best thing to happen to the Texans since their 12-4 peak three seasons ago.