Trailing the Buffalo Bills by seven and in good field position on Thursday night, Miami Dolphins quarterback Tua Tagovailoa threw a short pass intended for Jaylen Waddle. But Bills linebacker Terrel Bernard read Tagovailoa, stepped up and picked it off near the Bills’ 15-yard line, giving Buffalo the ball with three minutes to play.The Bills burned two minutes and 38 seconds on a six-play, 29-yard drive that ended in a field goal, helping Buffalo improve to 3-0 with a 31-21 win at Highmark Stadium. Meanwhile, the Dolphins dropped to 0-3.After trading touchdowns in each of the first two quarters, the Dolphins and Bills started the second half knotted at 14. A 2-yard touchdown run by James Cook gave the Bills the lead heading into the final frame, and the Dolphins responded for the final time on their next drive in the back-and-forth affair.Josh Allen went 22-of-28 for 213 yards and three touchdowns. Allen surpassed Kansas City Chiefs quarterback Patrick Mahomes to become the fastest player in NFL history to reach 300 career offensive touchdowns, including playoffs. Cook finished with 108 yards and one score.Tua Tagovailoa went 22-for-34 for 146 yards and two touchdowns against one interception. Tyreek Hill caught five passes for 49 yards and one TD and Waddle had five receptions for 39 yards and a TD.Dolphins throw McDaniel a lifelineDespite the loss, the Dolphins may have quieted some questions about coach Mike McDaniel’s job security … for now.Miami came out swinging with a 10-play, 52-yard opening touchdown drive. And just when the Bills looked like they might start to run away, kicker Matt Prater missed it wide left on a 39-yard attempt. Down by just one score, the Dolphins waddled down the field to tie it 14-14 at halftime.“So far so good, but it’s meaningless without another half,” McDaniel said at halftime on the Amazon Prime broadcast. “We have a lot of football to play and a lot of execution.”A Dolphins defense that allowed points on 10 straight opponent possessions to open the season — the worst mark since at least 2000 — looked improved. It nearly forced three straight punts in the second half, until a roughing the kicker penalty gifted the Bills a first down.Tagovailoa settled for a lot of lateral passes, but the offense made it work. Tagovailoa didn’t surpass 100 passing yards until a fourth-down conversion in the fourth quarter. He finished that drive with his second touchdown pass of the night. But after looking like he might steer clear of turnover trouble, Tagovailoa was picked off by Bernard with under four minutes to play, his fourth interception through the first three games.