No. 14 Houston had thrashed a series of overmatched nonconference opponents before opening the Big 12 slate with a thorough drubbing of Oklahoma State on the road last week.With its prolific offense, BYU was supposed to represent a step up in weight class.Instead, the Cougars (10-3, 2-0 Big 12) throttled BYU 86-55 on Saturday to extend its overall winning streak to six games and homecourt winning streak to a nation-best 30 games in advance of hosting TCU on Monday.According to KenPom.com, BYU entered the matchup ranked 24th in offensive efficiency. Houston limited BYU to 37.5 percent shooting and a season-low point total.”We just keep doing what we’ve been doing,” Houston coach Kelvin Sampson said. “We did that against Troy, Toledo, and we’re a pretty good defensive team.”The Cougars have been an exceptional offensive team of late, too. During their current winning streak, the Cougars are averaging 75.3 points and getting contributions from players up and down their roster.L.J. Cryer and Milos Uzan combined for 30 points against Oklahoma State to support a double-double from J’Wan Roberts before Emanuel Sharp and Terrance Arceneaux combined for 33 points on 10-for-18 shooting against BYU.”This is always going to be a defense-first and rebound program, but that doesn’t mean we aren’t trying to score points,” Sampson said. “Some nights we don’t score because the ball doesn’t go in. Offensively, you’re just as good as the shots that go in.”I don’t care how many points we score as long as we win. That’s what’s most important.”