Draftdaddy shared this. Props to Mark Knudson for not being afraid of pointing out facts!! 
Examiner.com: Is white running back stigma unfairly hurting Nebraska's Rex Burkhead?
We all know there is a stigma attached to white  running backs. They aren’t fast enough to be successful in the NFL, so  goes the prevailing thought.
 
Rex Burkhead  didn’t do much to dispel that notion at the NFL combine, where he ran a  pedestrian 4.73 in the 40-yard dash. He improved on that, running a  4.55 at Nebraska’s pro day, which is plenty fast for an NFL running  back. Better than Stefan Taylor from Stanford and a handful of others,  but not good enough, I guess. That’s really the only stat that gets any  attention or publicity from the meat market/combine, as we all know.  Therefore the self-proclaimed draft gurus have Burkhead rated very low  as a potential NFL draft pick.
 
Sure, you hear about guys with underwhelming scores  on the Wonderlic test, or when someone does something freaky good like  bench pressing 225 pounds 40 times, stuff like that. Otherwise, the rest  of the stats go pretty much unnoticed and the gurus who then decide  who’s a good draft pick based on this sliver of information.
 As Husker fans, we have some news for Mr.’s McShay,  Kiper, Mayock, etc. Rex Burkhead can play in the NFL. Not just play,  but excel. Some NFL team is going to get 
a late round steal come the end of April. As a Broncos fan, I dream of seeing Burkhead in the same backfield as Peyton Manning. Whew!
 
Analysts get so caught up in combine numbers that  they forget there’s a whole bunch of video of these guys actually  PLAYING FOOTBALL. 
Watch Rex Burkhead play football, and you will see for yourself. We watch it. Hopefully they do, too.
 Burkhead’s senior year wasn’t what anyone wanted it  to be, but even playing hurt, he did save his best performances for the  likes of Ohio State and Georgia, and averaged almost seven yards per  carry. Ask the Buckeyes if Rex Burkhead is fast enough. Ask Georgia if  he can catch the ball out of the backfield, which is so important for  NFL teams now. (Gil Brandt says Burkhead has “an exceptional pair of  hands.â€) Ask Iowa about Burkhead’s incredible nine yard pile moving run  from his own one-yard line that sealed the deal in last season’s  game…when he wasn’t even supposed to play. That was a couple thousand  pounds of football players he was moving. Yet he’s not got enough lower  body strength? Really?
 It’s amazing that these analysts can’t see past his 40-yard dash times. 
 
B
urkhead was far from a bust at the combine. He was  a “top performer†in five of the six testing categories. He was second  among the 33 invitees in vertical leap, broad jump and 20-yard shuttle  run. He was fourth in the cone drills and fifth in the 60-yard shuttle.  It was a tremendous performance.
Some of these rankings are just absurd. Scott Wright of 
www.nfldraftcountdown.com  has Burkhead listed a ridiculous 21st among draft eligible running  backs. There aren’t five better prospects in this class, yet Wright has  Burkhead behind guys like Giovani Bernard of North Carolina, Jawan  Jamison of Rutgers, Onterio McCalebb of Auburn and Kerwynn Williams of  Utah State. You know, guys who performed big time on the national stage  last season. Not.
 
Someone named Frank Cooney also has Burkhead ranked  21st…and has him as a 7th round draft pick or even a free agent. This  self-anointed guru noted that Burkhead “wasn’t invited to the NFL  scouting combine.†Huh? Maybe someone should clue him in.
By the way, Burkhead, at #21, is the HIGHEST rated WHITE running back. Stigma, indeed.