Kevin Sumlin For some who are head coaches at Football Bowl Subdivision (FBS) schools, there are some who are content to spend their entire coaching career on the college sidelines.

They enjoy the pomp and pageantry of the college life, and don't want anything else.

Yet there are some in this profession who seek the proverbial greener pastures of the National Football League.

Every time there is an open job for an NFL head coaching job, you hear the names of a few college coaches as potential candidates.

This past winter, one college coach, Oregon head coach Chip Kelly, decided to go from the green and gold of the Ducks to the green and white of the NFL's Philadelphia Eagles.

Greg Schiano, formerly the head coach at Rutgers, is in his second season at Tampa Bay. Yet he has yet to enjoy a successful season, and talk is rampant that he may return to the college ranks.

Any college football fan worth their favorite tailgating treat knows what happened when Steve Spurrier, Nick Saban and Bobby Petrino decided to leave the college scene for the NFL. Even though Saban and Petrino had a taste of being NFL assistants, it still wasn't enough for them to be successful head coaches.

Here is a lst of five college head coaches who are most likely ro jump to an NFL team come the 2014 season. Or at least see their name tied to an NFL job.

1. Kevin Sumlin, Texas A&M

Sumlin is entering his second year as the head coach of the Texas A&M Aggies, and had a good season last year at the Aggies made the transformation from the Big 12 to the Southeastern Conference.

Sumlin, who was a linebacker at Purdue University, has developed a solid offensive acumen, and had solid success as a co-offensive coordinator with Bob Stoops at Oklahoma University before he lef to become the head coach at the University of Houston.

He coached Case Keenum, who is now a quarterback in the NFL. Sumlin had a 35-17 record at UH, and everyone knows what he has done at A&M with Johnny Manziel.

And everyone knows the story about Manziel and his off the field activities. Aside from that, they guy can play.

With the recent dismissal of Southern Cal head coach Lane Kiffin, Sumlin's name has been mentioned as a possible repalcement. Last year, he turned down some overtures from NFL teams to stay in Aggie Land.

With his exciting, up-tempo brand of offense, plus he is a young, energetic coach, Sumlin may have the chops to move on to the NFL.

2. David Shaw, Stanford

Shaw was on Jim Harbaugh's staff as offensive coordinator at "The Farm" from 2006-2010, and was instrumental in turning the Cardinal from a laughing stock into a contender in the Pac-10, which is now the Pac 12. Shaw has not lost a step in the two years since he took over for Harbaugh, who is having success as the head coach of the San Francisco 49ers.

He runs a conventional, pro-style offense at Stanford, and he is also young and energetic. Those elements could bode well for him leaving Palo Alto for an NFL team.

3. Bill O'Brien, Penn State

O'Brien came to Penn State from a stint as Bill Belichick's offensive coordinator at New England. He stepped into a program mired in scandal and controversy over the situation involving former assistant Jerry Sandusky.

After an 0-2 start, the Nittany Lions bounced back to finish the 2012 season with an 8-4 mark. And his name was brought up for some NFL openings, yet he decided to stay at PSU.

O'Brien worked with Tom Brady during his tenure with the Pats, and his pro influence paid dividends for the Penn State offense. To wit, He helped quarterback Matt  McGloion have a good season, as well as receiver Allen Robinson and running back Zach Zwinick.

Recently, the NCAA said they are going to allow PSU to regain some scholarships that were taken away as part of the penalties resulting from the Sandusky saga. He has a buyout, but if the right NFL team comes calling...we shall see what we shall see.

4. Urban Meyer, Ohio State

Meyer helped the Buckeyes finish the 2012 season with a 12-0 record, and a Big 10 Leaders Division title. Meyer runs an up-tempo spread offense that he's used at Bowling Green, at Utah, at Florida - with Tim Tebow - and now at OSU. He coached the Gators to two national championships with two different quarterbacks, Chris Leak and Tebow.

Meyer has had success at every stop. If the Buckeyes have another season like last year - this time they can take part in postseason play - he could be in the NFL next year.

5. Brian Kelly, Notre Dame

Kelly got the Fighting Irish back in the hunt for national supremacy when they finished the 2012 season with a 12-0 record, and they played Alabama in the BCS National Championship tilt, losing 42-14.

Nonetheless, Kelly has changed the mindset in the land of "Touchdown Jesus" and the Golden Dome. One area of the Fighting Irish squad that has made strides in Kelly's tenure is the defense.

Last year, Notre Dame was the top defensive team in the country in terms of rushing touchdowns allowed and red zone rushing. In other defensive categories, the Irish were in the top five. The offense averaged over 189 yards rushing and 222 yards passing.

Kelly's name was brought up for the Philadelphia job along with others. This time around, he may do more than listen to an NFL team.