ATLANTA — Tua Tagovailoa managed one first down in two series. Kevin Stefanski is still not ready to name a starter for Week 1. And I’m here to tell you we’re all focusing on the wrong thing anyway.The Atlanta Falcons opened the Stefanski era Friday night against the Denver Broncos in Mercedes-Benz Stadium, the preseason opener for both teams. There have been better debuts. The Broncos won 27-7 as Atlanta posted nearly as many punts (eight) and penalties (nine) as first downs (11).“Our standard for our football team remains the same whether it’s the first quarter or fourth quarter or a preseason game,” Stefanski said. “Not good enough across the board. That’s why we’ll get back to work.”Tagovailoa, too, made his debut with the Falcons. After six years with the Dolphins, he joined Atlanta on a one-year, $1.2 million deal this offseason in hopes of finding a second act for his career. He finished 3-for-5 passing for 22 yards in two series and was upset with himself afterward for dropping the second snap of the game, leading to a 4-yard loss.“What we put out there is not a reflection of the hard work we have put in the first two weeks of training camp,” he said. “It starts with me. I have to be better. This being preseason is no excuse to put a performance like that on tape. Not happy at all.”Top Plays from Broncos @ FalconsEven after Friday’s shaky start, Tagovailoa could walk into the starting job in the season opener with little competition. Michael Penix Jr. still has not been cleared for 11-on-11 work in practice, much less a game. The Falcons have joint practices against the Colts in Indianapolis next week, and Stefanski is talking as if he doesn’t expect Penix to be cleared for those, either.If Penix is limited throughout next week, then he’d have a maximum of three weeks to compete with Tagovailoa before the Sept. 13 season opener. That doesn’t feel like enough time, even if quarterbacks coach Alex Van Pelt thinks he’s been able to get a good look at Penix already.