In an era where teams are averaging close to 50 points and 500 yards per game, it's clear offenses have the upper hand in today's game. Which college football offense will be the best in 2015?

Using ESPN's Football Power Index (FPI) -- which is broken down into predicted offense, defense and special teams components -- we will project the top offenses for the 2015 season. These rankings are based purely on statistical projections that account for previous years' efficiencies (most recent year counting most); returning starters (special consideration given to a team returning its quarterback or adding a graduate transfer quarterback); four-year average recruiting rankings and coaching tenure.

It's important to note FPI is not projecting total yards or points; it's projecting a team's expected points added (EPA) per game. Unlike yards, which treat all situations equally, EPA accounts for the context of a play and its impact on a team's potential points. Teams with the highest offensive EPA per game in a season will be efficient units that convert yards to points, avoid turnovers, control field position and move the ball. The number associated with EPA per game below refers to the points per game an offense is expected to contribute to its net scoring margin against an average defense, with an average offense expected to contribute zero net points.

Let's run through the list.