While I agree that BCS level position players are exceptional athletes, 4.42 is not average. It is very fast as the attached article of the fastest 40 times in the 2014 recruiting class indicates.
Most of the times listed were in the 4.45-4.49 range. Only about 5 guys were faster than a 4.42. Saw somewhere else where about 93 HS athletes ran faster than a 4.5 which would again say that a 4.42 was not average. Again, nothing to say if these were timed electronically or hand timed. If hand timed, have to add a tenth or two. Now the 11.08 is, while pretty quick, not really blistering
http://bleacherreport.com/articles/1800859-2014-college-football-recruits-with-best-40-times/page/15
Here is another grouping showing average DBs, WR, etc in the 4.5s
http://texas.247sports.com/Board/21/Contents/Average-HtWt-40-time-in-DI-D2-and-D3-19456944
Anything in the 4.4s is pretty quick and low 4.4s is fast.
I am making no claims as to whether these numbers are legit, only that iff they are, he is fast.
Interestingly, guys slow down in college.