Some players are having a better NFL Combine than others. A guy like Luke Kuechly, linebacker out of Boston College, is showing his athleticism and speed so the Combine is helping him more than anything.

Other guys, like Vontaze Burfict, aren't doing so well.

Burfict came into the Combine at 248 pounds, which is a little lighter than he normally plays. You'd think losing that weight would help his speed but that wasn't the case. He ran the 40-yard dash in unofficial times of 4.93 and 5.10 seconds.That's not a good time, not at all. Dontari Poe, a 346-pound defensive tackle, ran the 40-yard dash in 4.98 seconds. That's about a 100-pound difference between the two and they have similar speed.

He was also last in the broad jump among linebackers and second to last in the vertical leap. He has a lot to be desired in these workout numbers.

Burfict was once thought of as a first-round pick but character concerns along with poor test numbers are killing his draft stock. NFL Network's Mike Mayock noted during the Combine that, with all the character stuff to the side, he's still not a fan of Burfict based solely on the tape.

It hasn't been a great week for the Arizona State linebacker. The question is how many teams pass on him in April.

For news and information regarding the 2012 NFL Scouting Combine, please stay tuned to this StoryStream. For more on the 2012 NFL Draft, check out SB Nation's dedicated section and Mocking the Draft.