▁served ▁as ▁the ▁head ▁football ▁coach ▁at ▁the ▁University ▁of ▁North ▁Texas ▁from ▁ 1 9 9 1 ▁to ▁ 1 9 9 3 ▁and ▁at ▁Texas ▁Luther an ▁University ▁from ▁ 2 0 0 7 ▁to ▁ 2 0 0 9 , ▁compiling ▁a ▁career ▁college ▁football ▁record ▁of ▁ 1 7 – 4 5 – 1 . ▁ ▁Parker ▁began ▁his ▁co aching ▁career ▁in ▁the ▁high ▁school ▁ranks ▁as ▁an ▁assistant ▁at ▁San ▁Antonio ▁Ed ison , ▁San ▁Antonio ▁Hol mes ▁and ▁Con verse ▁Jud son . ▁At ▁Con verse ▁Jud son , ▁Parker ▁was ▁the ▁off ensive ▁coordin ator ▁under ▁coach ▁Frank ▁Arnold , ▁as ▁the ▁team ▁won ▁the ▁ 1 9 8 3 ▁state ▁championship . ▁In ▁ 1 9 8 4 , ▁he ▁took ▁over ▁head ▁co aching ▁duties ▁at ▁Marshall , ▁gu iding ▁the ▁school ▁to ▁a ▁ 5 6 – 2 7 – 1 ▁record ▁in ▁seven ▁years . ▁In ▁ 1 9 9 0 , ▁his ▁team ▁won ▁a ▁state ▁championship ▁versus ▁Con verse ▁Jud son . ▁Parker ▁was ▁named ▁the ▁Texas ▁High ▁School ▁Co ach ▁of ▁the ▁Year ▁in ▁ 1 9 8 8 ▁and ▁in ▁ 1 9 9 0 . ▁ ▁Mov ing ▁into ▁the ▁colleg iate ▁ranks , ▁Parker ▁succeeded ▁C ork y ▁Nelson ▁at ▁North ▁Texas ▁in ▁ 1 9 9 1 . ▁He ▁left ▁in ▁ 1 9 9 3 ▁after ▁three ▁losing ▁seasons . ▁He ▁later ▁co ached ▁at ▁Cle bur ne ▁and ▁M esa ▁before ▁becoming