Charlie Coiner is an American football coach and the founder of 1st Down Technologies, LLC, a business based in an Austin, Texas and founded on August 16, 2011, that produces mobile applications for football coaches. Coiner has worked as an assistant coach in the National Football League (NFL) with the Chicago Bears and the Buffalo Bills and in college football at a number of schools. Coiner was a defensive assistant on the North Carolina in 2010 which was the same season that the Tar Heels went to the Music City Bowl. His most recent coaching job was as the tight ends and special teams coach at the University of Tennessee. In 2015, Coiner launched his first installment of FirstDown PlayBook. References External links Tennessee Volunteers bio North Carolina press release 1960 births Living people Appalachian State Mountaineers football coaches Austin Peay Governors football coaches Buffalo Bills coaches Chattanooga Mocs football coaches Chicago Bears coaches Louisville Cardinals football coaches LSU Tigers football coaches North Carolina Tar Heels football coaches Minnesota Golden Gophers football coaches Tennessee Volunteers football coaches Texas Southern Tigers football coaches Vanderbilt Commodores football coaches Catawba College alumni People from Waynesboro, Virginia