Two years ago, the Cowboys traveled to Mobile, Ala., for Senior Bowl practices in search of their future quarterback. And, they found him.Well, they actually found several they liked, but ultimately drafted Dak Prescott in the fourth round. Not long afterward, No. 4 jerseys were flying off the racks as Prescott led the Cowboys to a 13-3 record and was named NFL Offensive Rookie of the Year.But Prescott and the Cowboys' offense took a step back in 2017, with Dallas missing the playoffs at 9-7.That leaves the Cowboys searching for answers this offseason.