PITTSBURGH (AP) — Brett Keisel saw the ball drop into his 36-year-old hands, and the Pittsburgh Steelers defensive end started chugging toward the end zone. Neither is the case anymore, though Keisel's dash that set up Pittsburgh's third touchdown in a 73-second stretch at the end of the first half of Monday night's 30-23 win over the Houston Texans proved anything remains possible for a team that can't figure out whether it's good or bad or both. Houston (3-4) turned the ball over on consecutive snaps to set up short Pittsburgh touchdowns as the Texans and star defensive end J.J.