I am still laughing at the prospect of Chris Johnson having a chance.
Think of it like this, Justin King ran 4.31 at the combine. Just slightly slower than Chris Johnson and one of the fastest times ever run. His 100m PR from high school (competed from his freshman through junior year of high school and in middle school as well) is 10.94. He lived in the same area as me. He had multiple times, in good conditions, over 11 seconds. Darrin Walls, the #1 CB prospect out of high school, broke 11 one time under suspicious conditions and only qualified for his state meet after a DQ (ran 11.36 to qualify).