Harris Over the course of this season the Dallas Cowboys have had to patch up and do running repairs, in many positions.

This has caused players to move around and play in positions they are unaccustomed to.

The adjustments they've made have helped the team to its current position, a tie at the top of the NFC East and in control of their playoff destiny.

Here are three of the unsung heroes that will help push the Cowboys to their 22nd division title, and 31st playoff appearance.

A key element to the recent Cowboys' success has been the emergence of Dwayne Harris.

Over the past five weeks he has been the third choice receiver, and has caught 15 passes for 181 yards, an average of 12.1 per catch. Starting the year as the team's primary punt returner, he has also carried out these duties over the past few weeks.

His dual function means he is gaining more confidence. This is clearly shown, every time he touches the ball it looks like he may break away for a large gain or even a score. His dynamic play has elevated him above Kevin Ogletree in the receiving depth chart.

When the worst was confirmed, and Jay Ratliff was sidelined for the rest of the season (although not on injured reserve), it was yet another hole to fill on the defensive side of the ball. Step up Sean Lissemore, the third-year player out of William & Mary.

Playing nose tackle is one of the hardest jobs in football. Often an unforgiving and lonely role, you don't grab many headlines. Lissemore needs to learn on the job, and fast. He will be the foundation and glue that will hold the defense together over the next two challenging games. Is he up to it?

Well if last week was anything to go by, the answer will be yes. Gaining his first career sack, and helping limit the Steelers to just 69 rushing yards. Lissemore is now a vital cog in the Cowboys' drive to the playoffs.

Beasley Cole Beasley is a rookie wide receiver out of SMU. he has, to date, caught 15 passes for 128 yards. No touchdowns.

So why will he be a big influence on the Cowboys in the coming weeks?

He has become a clutch receiver in 2nd and 3rd down situations. He has very sure hands, and even though he doesn't see much game time, when he does he makes it count.

Beasley doesn't look like a typical receiver type, in fact each hit he takes as he tightropes a sideline, looks like he may snap.

He is another weapon in the Dallas armory now, and like Harris, he gains confidence with every touch.

Expect to see more of Beasley as the Cowboys look to ease the pressure on Dez Bryant and Miles Austin.