With three quarters of the 2015 regular season in the books, I'm taking a look at how this year's rookie first-round picks have fared to this point. I a sign a grade for each offensive player here, and I unveiled my marks for the .Heads of the cla sBuccaneers QB Jameis WinstonGrade: A+Pick: No. 1 overallThe skinny West Ham United Jersey : After a rough opener, Winston steadily has improved and is currently playing at a very high level. His ability to quickly work through progre sions and throw with anticipation is very impre sive.Titans QB Marcus MariotaGrade: A+Pick: No. 2 overallThe skinny: The have struggled to compile wins, but Mariota has far exceeded expectations. He's playing winning football from the pocket and he's starting to be more aggre sive as a runner.Raiders WR Amari CooperGrade: APick: No. 4 overallThe skinny: Cooper has been a dynamic addition to the ' pa sing attack. He's had a couple drops along the way, and that's the only thing keeping him from an A+ grade. Rams RB Todd GurleyGrade: A-Pick: No. 10 overallThe skinny: Gurley got a late start to the season after recovering from a knee injury he suffered last year at Georgia, but he quickly ripped off four straight 100-yard games. His production has taken a dip over the last few weeks, but he has ability right now. Knocking on the doorRedskins G Brandon ScherffGrade: BPick: No. 5 overallThe skinny: Scherff has been overmatched at times in pa s protection, but I love his physicality and temperament in the running game. Tyler Adams Jersey He has improved throughout the course of the season. Giants OT Ereck FlowersGrade: BPick: No. 9 overallThe skinny: Flowers has battled some injuries this season, but he's proven to be a very physical run blocker. He is still very raw in pa s protection, but I believe he is a key building block for the ' offense. Mixed resultsDolphins WR DeVante ParkerGrade: C+Pick: C.F. Monterrey Jersey No. 14 overallThe skinny: Injury and a lack of opportunity delayed Parker's coming-out party, but he started to shine over the last two weeks. He has an excellent catch radius and big-play potential. I anticipate this grade will improve over the last four weeks of the season. Lions G Laken TomlinsonGrade: CPick: No. 28 overallThe skinny: Tomlinson has started 10 games for the and he's shown signs of improvement. However, he still gets caught out of position too often, which leads to negative plays and penalties. Colts WR Phillip DorsettGrade: CPick: No. 29 overallThe skinny: Dorsett flashed some big-play ability before breaking his ankle in late October. If healthy, this grade would've been higher.Saints OL Andrus PeatGrade: C-Pick: No. 13 overallThe skinny: Peat has started a handful of games this season (3 at OT, 2 at G) and he's been underwhelming. He lacks ideal foot quickne s at tackle and he plays too high inside at guard. Chargers RB Melvin GordonGrade: C-Pick: No. 15 overallThe skinny: Gordon hasn't looked comfortable in the San Diego system for the majority of the season, and he's had ball-security i sues. He has been a little more decisive and aggre sive over the last two games, but overall, he's been disappointing. Eagles WR Nelson AgholorGrade: C-Pick: No. 20 overallThe skinny: I had high expectations for Agholor following the preseason, but he's failed to make much of an impact for the ' offense. Despite starting eight games, he's only produced one game of 40-plus receiving yards and he's yet to catch a touchdown. Major disappointmentsBrowns G Cameron ErvingGrade: DPick: No. 19 overallThe skinny: Erving plays too high and he lacks the strength to anchor in pa s pro. He England National Team Jersey 's playing out of position (he's started two games at guard; his future is at center), but El Salvador National Team Jersey the early returns aren't positive. Cardinals OT D.J. HumphriesGrade: FPick: No. 24 overallThe skinny: Humphries has yet to dre s for a game this season. I believe in his skill set and upside (he was my top-rated OT in the draft cla s), but he was atrocious in the preseason. TBD at a later dateBears WR Kevin WhiteGrade: IncompletePick: No. 7 overallThe skinny: White was one of my favorite players in the draft cla s, but, unfortunately, he's mi sed the entire season due to a shin injury he suffered in training camp. Bengals OT Cedric OgbuehiGrade: IncompletePick: No. 21 overallThe skinny: Ogbuehi has only been active for one game after rehabbing a torn ACL he suffered in college. Ravens WR Breshad PerrimanGrade: IncompletePick: No. 26 overallThe skinny: This will be a redshirt year for Perriman due to injury.Follow Daniel Jeremiah on Twitter at .