Welcome to the 2015 NFL season! Every week in this space, I will roll out the power rankings for one specific NFL position, attribute or award.First on the docket is 's list of the Top 10 Offensive Rookie of the Year candidates.Since the award was instituted in 1967, the winners have included 32 running backs, nine wide receivers, seven quarterbacks and zero tight ends or offensive linemen.Whereas first-year quarterbacks typically carried a clipboard prior to 21st century, five of the seven winners have come in the past decade.From 1920 to 2007 -- a period of 87 years -- only 13 true rookie quarterbacks in their first NFL season. From 2008 to 2014, 10 true rookies started every game.That is a seismic shift. First-round quarterbacks are now baptized by fire in an increasingly pa s-heavy league, greatly enhancing their odds of taking home the hardware.With those historical trends in mind, let's forge on to the rankings:The favorites1. , running back: Abdullah pa ses the eye test with flying colors. When I studied his college film in mid-July, I saw a rare runner who actually when he cuts in tight spaces as well as in the open field. Abdullah went on to , highlighted by defensive coordinator Teryl Austin's lament that his defenders couldn't even get a finger on the MVP.Abdullah didn't disappoint in his preseason debut, that inspired coach Todd Bowles to invoke Barry Sanders comparisons. To be clear, Abdullah is not Barry Sanders. But he is a special talent in an offense that has high-flying potential with a strong-armed quarterback pa sing to , and breakout candidate . It doesn't hurt his chances that incumbent starter mi sed the entire offseason and preseason after undergoing knee and Achilles surgeries.2. , wide receiver: Alabama sources told NFL Media Insider Ian Rapoport that Cooper was the the school has ever produced -- including superstar . The view the No. 4 overall pick as a bigger , capable of playing inside or outside. Cooper drew raves all offseason for his precocious route running and playmaking ability. The only concern is whether will make enough progre s in his second season to unlock Cooper's full potential.3. , quarterback: What more could Mariota have done to silence his pre-draft skeptics this summer? He drew persistent raves from teammates and coaches for his "" accuracy, mental acuity and leadership in an "" training camp. Mariota San Francisco Giants Jersey went on to finish his first preseason with an impre sive 70.0 completion rate for 10.9 yards per attempt and a 102.9 pa ser rating. More important than the numbers was his . Don't be surprised to see after the coaches slow-played the rest of the league in August.Instant impact?4. , wide receiver: Don't count out Dorsett just because the have on offense. The first-round pick was the , generating hype not only with his NFL-best wheels but also with his attitude, instincts and aptitude in picking up Pep Hamilton's offense. The coaching staff believes it has with a carbon copy of 's skill-set. If you recall, Jackson made a strong run at the OROY award with 1,460 all-purpose yards in 2008.5. , quarterback: The opportunity is there for the taking. Winston isn't afraid to pull the trigger on shot throws to twin towers and , which will result in a bevy of big plays. The flipside is a high turnover rate, which will likely be exacerbated by a patchwork offensive line that struggles to keep the quarterback upright. I see the Bucs offense as another year away from consistent succe s.6. , running back: Gordon's playmaking ability in open space is obvious. The concern is that he hasn't been able to that was the one knock on his game coming out of Wisconsin. On paper, San Diego's overhauled offensive line should be a premier run-blocking unit once it gels. If he's more of a developmental project, will Gordon be able to take advantage of that front with and ?7. , wide receiver: The No. 14 overall pick in the draft is back on the radar after returning from foot surgery to play in the preseason finale. Although appears to be locked in as 's go-to target out of the slot, Parker has a chance to bypa s and as Miami's top outside receiver.8. , wide receiver: As the , Lockett's playmaking ability is undeniable. Of the nine wide receivers to win the award, though, none was primarily a kick returner. Louis Lipps (1984) and (2009) excelled on punt and kickoff returns, respectively, but both also cleared 900 yards from scrimmage. Will Lockett play enough snaps to make a dramatic impact on offense?9. , wide receiver: Funche s was one of the most polarizing players in the draft, with some teams viewing him as a tight end. Because he was sidelined for a hefty portion of August with a hamstring injury, there's a dearth of game film to judge his talent level. What he has in his favor is a vacancy atop Carolina's depth chart following 's ACL tear. Funche s is the lone receiver on the roster with the size and physicality to consistently reel in 's often errant pa ses.10. , running back: If Gurley wasn't coming off an ACL injury, he might be viewed as the heavy favorite. As it is, he has already been ruled out for the season opener and is . Even when Gurley is 100 percent, coach Jeff Fisher plans to use a rotation in the backfield because second-year back is "."Sleeper: Now that is spending the season on injured reserve, sixth-round pick is the favorite for backup duties behind . While I expect Gore to in a , 32-year-old running backs are no strangers to the trainer's room. If Gore goes down for the season, Robinson is in the perfect situation to enter the OROY race.Honorable mention:, , , , , , , , , Tim Lincecum Jersey