NFL Combine 2015: Offensive Prospects Who Boosted Stock in Indianapolis

So far, the 2015 NFL Scouting Combine is as predictable as Peyton Manning's eventual career decision this summer. 

In Indianapolis, Jameis Winston looked every bit of the top pro-style quarterback in the class, while counterpart Marcus Mariota's athleticism makes the decision between the two more preference than anything.

The top names at running back and wideout did not receive a stock boost, either, but rather a validation as to why they lead the class in the first place. Melvin Gordon wowed spectators. Amari Cooper, Kevin White and others performed as expected.

The few who did surprise will cause NFL teams and observers to go back and more heavily scrutinize film to examine how it aligns with Saturday's measurements.

The following names are on the receiving ends of major stock jumps thanks to great showings in the biggest job interview of their lives.

Top Offensive Rising Stocks

Jeremy Langford, RB, Michigan State

The 2015 running back class is a mess in the best way possible. 

Gordon leads the way, with Ameer Abdullah, Duke Johnson and more not far behind, not to mention the allure to the injured Todd Gurley.

Michigan State's Jeremy Langford is a bit lost in the shuffle as a result—or at least he was, until his showing in Indianapolis.

There, Langford blazed the fastest 40-yard dash of the group at 4.42 seconds and posted wow-worthy numbers in the vertical and broad jumps before displaying good overall agility in the three-cone drill and the 20-yard shuttle—all after weighing in at 6'1" and 208 pounds. 

The film meshes well with the measurements, as well as the most basic of stats during his two years as a starter with the Spartans:

YEAR	ATT	YDS	AVG	LNG	TD
2014	276	1522	5.5	65	22
2013	292	1422	4.9	44	18

It seems a stretch right now, but NFL Network does point out that Langford at least compares favorably to one of the NFL's best in the measurements department:

Clearly, Langford is deceptively fast on the field as he glides his way through holes and away from defenders.

The secret is out now, which means Langford's stock is on a steady rise. In short, the running back situation just is more convoluted than ever.

Chris Conley, WR, Georgia

David J. Phillip/Associated Press

The wideout position is just as confusing. After the pair of names mentioned above, one must also remember DeVante Parker, Dorial Green-Beckham, Jaelen Strong and many others on the list.

Where Georgia's Chris Conley rests on said list is impossible to nail down, but rest assured he's on the rise after Saturday. There's a reason top names such as NFL Network's Brian Billick are doubling back to do some serious homework on the Bulldogs star:

Conley weighed in at 6'2" and 213 pounds, pretty solid size for next-level play.

That's not even the half of it—he ran a 4.35 40-yard dash and a ridiculous 45-inch vertical jump and 139-inch broad jump. Feel free to call him the master of explosion, as ESPN CollegeFootball illustrates:

Again, the combine is but a small portion of the big picture, though.

Once the globe flicks on the film, negatives will pop up. Conley struggles to create separation against press coverage and is not exactly a polished route runner, although the solace in those negatives is that they are coachable over time. 

That's what makes Conley such an intriguing name on draft day—it is impossible to teach his physical gifts. A team can mold the rest in time and in the interim use him situationally to take the top off defenses. 

Perhaps no prospect is a bigger stock-riser than Conley as a result.

Bryce Petty, QB, Baylor 

Julio Cortez/Associated Press

While the most recognizable name on the list, Baylor quarterback Bryce Petty deserves a mention. 

Few players had more at stake in Indianapolis Saturday.

Few performed better.

Stuck behind Winston and Mariota and in a two-man battle with UCLA's Brett Hundley for the third spot, most did not give Petty a realistic shot to nail down a position as third in class.

Petty came in at 6'3" and 230 pounds with a 4.87 40-yard dash and top numbers among all players at his position in agility drills, proof enough that his 20 rushing touchdowns over the course of the past two seasons are no fluke.

This is about Petty as a signal-caller in the purest sense, though, as his form encouraged those in the know, such as ESPN's John Clayton:

NFL Network's Mike Mayock echoed these sentiments:

Truthfully, Petty's stock could have swung in either direction in dramatic fashion.

Now, though, Petty seems to have maneuvered himself just right to be the shocker of the draft.

After all, as ESPN's Adam Schefter reminds observers, it was not too long ago that the Baylor product was potentially one of the top overall choices:

As is always the case, it takes just one team to fall in love with a prospect.

For Petty, the showing in Indianapolis is an important turning point. It boosted his stock and likely cemented his status as the third quarterback in the minds of most, something that was up for grabs before the event.

Sometimes the minor stock fluctuations pay off the most.

Note: Stats courtesy of NFL.com as of Feb. 21 at 9 p.m. ET. All advanced metrics via Pro Football Focus.