The draft process can sometimes be skewed. There are 15 undrafted players who have made the Hall of Fame, while just 13 No. 1 overall picks have been enshrined in Canton.

The 2014 draft class appears to be one of the deepest in recent years and features numerous of undrafted players who have made instant impact. Let’s take a look at some of these under the radar guys.

Branden Oliver, RB (Chargers) – The 5-foot-7 running back from Buffalo University has been a pleasant surprise in San Diego. Oliver was thrown into the fire after Ryan Matthews went down with a knee injury. At the time it appeared the Chargers were in deep trouble, but Oliver quickly erased those doubts.

Oliver won Rookie of the Week honors in consecutive weeks during October, as the rookie totaled 215 rushing yards and two touchdowns against the Jets and Raiders.

The running style of Oliver has future Hall of Fame tight Antonio Gates giving him high praise.

“He reminds me so much of (Darren) Sproles. And I played with Sproles so many years. It’s crazy. He’s Sproles, with a little bit more power.”

Only time will tell if Oliver can live up to the Sproles hype.

Allen Hurns, WR (Jaguars) – While there hasn’t been much to cheer about if you’re a Jags fan, Hurns has been one of the few bright spots.

In his first game, Hurns gathered 4 catches to go along with two touchdowns. On the season, he has 31 catches and five scores. Hurns went to the “U” and wears number 88, which comes with great responsibility.

NFL hall of famer and Hurricane legend Michael Irvin has been pleasantly impressed with Hurns play.

“He’s an 88-clubber now. I told Allen, it takes something special to earn an opportunity to come into the 88 club. I told all the guys in the league, ‘If you’re not a bad man, go to your coach and say, make sure you don’t give me 88. Because, if you can’t carry that number, don’t put it on.’ I’m so proud of what I’m seeing out of Allen Hurns right now.”

Hurns was humbled by Irvin’s comments.

“It means a lot, especially coming from one of the greatest to ever do it,” the rookie said. “I had that mind-set at Miami to live up to the expectations because they paved the way. I had to follow them. To hear that praise from him is special.”

Isaiah Crowell, RB (Browns) – Despite being in a crowded backfield with fellow rookie Terrance West and Ben Tate, Crowell has managed to standout. Although Crowell has less carries than West and Tate, he still leads the team in yards per carry (5.0) and rushing touchdowns (7).

7-time pro bowler Joe Thomas admires the rookies’ ability.

“He is amazing,” Thomas said. “The runs that he makes, he almost never misses a cut. He always gets his shoulders downhill…I love that guy. I love giving him the ball when he’s in the backfield, because you know good things are going to happen.”

Crowell has used the fuel of going undrafted as his driving force to become great.

“I felt like I had let them down,” Crowell said of his parents. “It was one of their great disappointments. One of my goals was to get back on track and make them proud of me again.”

As the Browns attempt to make their playoff push, they’ll need Crowell to stay productive.

Jonathan Harrison, C (Colts) –It’s very rare to see an undrafted rookie start at center, but what’s even more rare, is to see an undrafted rookie start at center for a playoff caliber team. Former Florida Gator Jonathan Harrison has overcome all of those odds.

Colts head coach Chuck Pagano saw the potential early on.

“The center’s a really smart guy and tough,” Pagano explained. “From a technical standpoint, it looks like he’s been well-coached. Really pleasant surprise, really pleasant surprise.”

Harrison now has 7 starts under his belt, which comes as no surprise to Colts general manger Ryan Grigson.

“Harrison has a way about him…he just knows how to play with leverage and we saw that from day one and that’s kind of something you can’t teach,” the Colts’ general manager said.

Grigson went on to praise Harrison.

“He has just the flexion in his hips, the hand placement and then gets into contorted positions and still is able to play strong. We like what he brings to the table.”

As long as Harrison is protecting Andrew Luck, there will be a spot for him in Indianapolis.

Cody Parkey, K (Eagles) – Kickers need some love too. The rookie from Auburn has been an essential piece for  Philly, converting on 27 of his 29 field goal attempts.

Philadelphia Eagles’ head coach Chip Kelly has been very pleased with Parkey’s accuracy.

“I don’t know how many he’s hit on the year, but he’s only missed two, so it is kind of a surprise if he does miss one,” Kelly said.

The focus on each kick has been the key to his success.

“I just look at it the same,” Parkey said. “I don’t change a thing. I feel like I have good distance on the ball always. Unless I’m beyond 60 yards, I just kick the ball the same, try to swing smooth and trust my training throughout the week to make kicks.”

The life of a kicker is a harsh one, so hopefully for Parkey’s sake he’s able to continue his good play.