There are inevitably risers and fallers during the NFL Draft season. All-star games, pro days, the NFL Combine, official visits, workouts - whatever the case may be, the top prospects are certainly under a microscope at this time of year and some see their stock rise and some see it fall. Chris Polk, by most accounts, has seen his stock plummet and according to the draft prospect rankings over at Sports Illustrated, is only ranked 15th among the running backs in this year's class.
TFYDraftInsider.net and SportsIllustrated's rankings are an excellent resource for research on players, and they list Chris Polk's negatives as such:
Negatives: Possesses just an average burst through the hole. Not an elusive or creative back who creates yardage. Gives poor attempts blocking and gets poor results. Reportedly has personality issues that do not sit well with many teams.
Despite his career-best numbers of 1488 yards rushing and 12 TDs on the ground with 31 receptions for 332 yards and 4 more TDs through the air, Polk will be fighting to disprove his detractors come late April. He's currently projected in the fourth round, per those rankings.
Make sure to head over to SportsIllustrated to peruse more of their scouting reports - it's really one of the more well-organized and thorough places on the web to find more information on prospects.
For more on Polk and his time at Washington, check out UW Dawg Pound.