Head football coach Dave Henigan will be the first two tell you that Grapevine’s games against Keller Fossil Ridge and Justin Northwest have not been a lot of fun.A group that finished 3-7 in 2012 has 16 new starters in place. The adjustment has been tough as the Mustangs (0-2) have been outscored 94-21.“There’s been a lot of growing pains,” Henigan said. “That’s the best Fossil Ridge team I’ve seen in some time, and Northwest is really solid. We’re going through things with our group needing to do a lot of good things.”Down 42-7 at the half against Northwest, Henigan preached to his team to play the third and fourth quarters straight up. That’s what happened. Regardless of what the Texans were doing on their end, the Mustangs played a 7-7 second half and fell 49-14.In the meantime, Henigan said he will name a starting quarterback for Friday’s final non-district game against Sachse. The race is between senior Adam Sandy and junior Sam Barry. Both are similar as dual-threat type of signal callers.However, Henigan declined to publicly name a starter yet. Statistically, Sandy has been more productive because he’s had more opportunities to throw. He’s 20-of-41 for 201 yards with two touchdowns and four interceptions. He’s also rushed for 168 yards. Barry has attempted only 10 passes but rushed for a 41-yard touchdown against the Texans.If anything, it would appear that Sandy has the inside track to be the starter because of what happened at the end of last Friday’s game. He threw a 12-yard touchdown pass to Barry.“Both have done some good things,” Henigan said. “Adam is not as big, but he is fast. We’ll just make a determination of how we want to play it.”As for the defense, Henigan said one thing this unit needs to be is more physical. To do that, it has to play with its pads lower.Facing SachseIn last year’s meeting with the other Mustangs, Grapevine lost a shootout, 69-48. It’s going to be a tougher matchup this year, because Sachse starting quarterback Kent Myers is dangerous.Through the first two games this year, Myers has rolled up 738 passing and rushing yards and 10 passing and rushing touchdowns. Grapevine plays host to Sachse at 7:30 p.m. Friday at Mustang-Panther Stadium.“He’s special,” Henigan said. “You have to try and limit big plays. You’re not going to stop him. We just have to play with confidence and string together four quarters of good football.”NotableWide receiver Marcus Dempsey, who averaged 16.1 yards per reception in 2012, is no longer a member of the team, Henigan said. Henigan declined to give further details. But it is a blow to the offense, which is in need of playmakers.Panthers face Flower Mound Colleyville Heritage (0-2) at Flower Mound (1-1) 7:30 p.m. Friday, Jaguar Stadium, Flower Mound The skinny: Through the first two games of the season, Colleyville Heritage quarterbacks have combined to throw only one touchdown pass. And that isn’t from starter Griffin Pickler. You just don’t see that from a Colleyville Heritage offense. Running back Demarco Corbin leads the team in receiving yards with 144, 51 more than he has rushing.