Greatness is defined in so many different ways. Statistical production, individual awards, team success, longevity, supporting cast, level of competition, raw talent and athletic ability all factor heavily in determining overall greatness. Sometimes, you simply know greatness when you see it.

So all factors were considered when trying to determine who the greatest running backs of the BCS era have been. Here are the Top 50 ball carriers since the BCS was implemented in 1998:

The Pac-12 is loaded with potential standout running backs for 2013.

Coaching is one of the driving forces in building a national championship team or program. No matter how much talent a program has, it can’t win a national title if the coaching is questionable.

Considering how important coaches are to teams or even making preseason predictions, Athlon is taking a look at how each conference stacks up with its head coach rankings for 2013.

The start of the 2013 college football season is still months away, but it’s never too early to start thinking about preseason predictions and some of the top games to watch in each conference.

Greatness is defined in so many different ways. Statistical production, individual awards, team success, longevity, supporting cast, raw talent and athletic ability all factor heavily in determining overall greatness. Sometimes, you simply know greatness when you see it.

So all factors were considered when trying to determine who the greatest quarterbacks of the BCS era have been. Here are the Top 50 signal callers since the BCS was implemented in 1998:

* - active, ** - not all seasons played in BCS era

With spring practice underway across college football, most of interest will focus on quarterback battles or incoming freshmen that enrolled early to get a jumpstart on making an impact for 2013.

Each year a unique set of prospects enters the professional ranks with a chance to make an immediate impact on the country's most powerful sport. The 2013 NFL Draft, held April 25-27, won’t be any different. The nose tackle position is a rare commodity that is highly coveted by every NFL franchise. And the 2013 class features a deep collection of elite prospects at the top of the rankings. However, after the top ten names are called, there could be a severe drop off in talent. Look for teams to go early on defensive tackles.

Coming off a season where eight teams made bowl appearances, along with the rise of Stanford and Oregon into annual top-five status, the arrow on the Pac-12’s future is clearly pointing up.

We have ranked every college football program in the country, based on the attractiveness of the position from a coaching perspective. We considered many factors — tradition, facilities, location, money  — but in the end, we simply asked ourselves the following question: Where would we want to coach? Today we focus on the Pac-12.

Recruiting in college football is downright nasty. It is a cutthroat, cannibalistic big business that is microscopically analyzed by fans, administrators and media members alike. The Pac-12 has watched its league and programs grow substantially in the past few years. Commissioner Larry Scott, the Pac-12 Network, a new media rights contract, six new coaches in the last two seasons and a variety of major facilities upgrades give Pac-12 schools plenty to sell to recruits.