Five takeaways from Patriots-Texans: All-purpose backs Burkhead, Lewis look sharp

HOUSTON — We'll have plenty of analysis and reporting from the Patriots and Texans locker rooms later, but here are five quick-hit takeaways from Saturday's preseason matchup at NRG Stadium . . .  1. ALL-PURPOSE BACKS COULD BE HEADACHES FOR OPPOSING DEFENSES Rex Burkhead and Dion Lewis both looked quick on their feet and showed off their well-rounded games against Houston's defense. Burkhead finished with seven carries for 20 yards and caught three passes for 50 yards, including a 22-yard touchdown where he freed himself from linebacker Zach Cunningham with a nifty move over the middle of the field. Burkhead also showed up in pass protection. Lewis, meanwhile, had seven carries for 34 yards