Ryan Tannehill could be a top 10 pick in next month’s NFL draft, less than two years after lining up as a receiver for Texas A&M. Tannehill returned to his old high school position of QB halfway through the 2010 season and caught the attention of NFL scouts despite starting just 19 games behind center for the Aggies. On Thursday, he worked out for representatives of 22 NFL teams, including Pete Carroll, Joe Philbin and Brad Childress.