Former Lions D-Line Coach John Teerlinck passes away at 69 May 12, 2020 0:59:55 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by D6 on May 12, 2020 0:59:55 GMT -5 John Teerlinck, former Detroit Lions defensive line coach in ‘90s, dies at 69………………..Very sad news. John Teerlinck was one of the best Defensive Line Coaches in NFL History. His coaching style, tied into the Defensive scheme, was upfield and aggressive. A one gap get to the QB foundation.