Baylor’s top-ranked passing defense will try to slow down a potent Colorado aerial attack in Saturday’s Big 12 Conference opener for both teams in Boulder, Colo.Baylor coach Dave Aranda assumed defensive play calls this season and the Bears (2-1) have allowed just 75.7 passing yards per game.Colorado’s Shedeur Sanders has completed 70.2 percent of his passes for 999 yards, nine touchdowns and two interceptions. He’s been sacked seven times.Travis Hunter is a do-everything star for the Buffaloes (2-1). As a receiver, he has a team-high 30 receptions for 342 yards and five scores. On defense, he’s a shutdown corner with 11 tackles and an interception.”I have a lot of respect offensively for what they do,” Aranda said. “Their quarterback makes some really hard throws. If he knows what you’re in, the throws are out before the turns are made and before the coverage has a chance to work a leverage or any of that. Once he knows, it’s bad for the defense. And then, I think the skill is such that you can only double cover so many people.”In a 31-3 home win against Air Force last week, Sawyer Robertson started at quarterback for Baylor in place of an injured Dequan Finn and completed 18 of 24 passes for 248 yards with a rushing touchdown.