Darrell Green wasn't really all that,
http://trackfield.brinkster.net/Profile.asp?ID=2319&Gender=M&Page=Results.asp&EventCode=MA1
He never did anything at all on the national scene and only took 6th at the NCAA.
1982 (Provo, June 05; wind +1.9) ......................................................(A) (34 contestants, 8 finalists; Q—10.30)
1. Stanley Floyd (Houston).................................... So ..............10.03 (MR)
2. Willie Gault (Tennessee) .................................... Jr................10.10
3. Mike Miller (Tennessee)..................................... Sr ...............10.11
4. Mark McNeil (Houston) ..................................... So ..............10.19
5. Darwin Cook (USC)........................................... Fr................10.21
6. Darrell Green (Texas A&I) .................................. Jr................10.27
7. Rod Richardson (Texas A&M)............................ So ..............10.3
NFLers to be Willie Gault and Mike Miller beating him there.
There was no 4.09 that is fiction.
He did run a great 10,08 but was more of a 10.2ish cat, which is what Deion and Heschel Walker ran.