- David Ching, ESPN Staff Writer
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Nearly everyone who watched Johnny Manziel run circles around opposing defenses last season agreed that the Texas A&M star was the nation’s top quarterback in 2012.
A new statistical measure that ESPN will introduce to college football this season -- Total QBR (Quarterback Rating), which it brought to the NFL a couple of years ago -- confirms that Manziel’s 2012 performance did more than just pass the eye test.
Of the 122 qualified quarterbacks, the Heisman Trophy winner led the nation with a 90.5 Total QBR.
Here is a primer on the similar NFL QBR, which explains how the metric attempts to explain everything a quarterback does: running, passing, sacks, fumbles and penalties. It measures a player on a 1-100 scale, where 50 is average.
Sharon Katz of ESPN Stats and Information recently explained how Total QBR is an important measuring stick for teams harboring BCS championship hopes. Four of the last five quarterbacks who helped their teams win the BCS title ranked in the nation’s top eight in QBR.
That might be an important statistic to watch for the six SEC teams who are ranked in the top 12 in the Associated Press preseason poll: No. 1 Alabama (AJ McCarron was eighth nationally last season with an 81.1 QBR), No. 5 Georgia (Aaron Murray, 13th with 78.4), No. 6 South Carolina (Connor Shaw, 38th with 64.6), No. 7 Texas A&M (Manziel), No. 10 Florida (Jeff Driskel, 51st with 59.1) and No. 12 LSU (Zach Mettenberger, 80th with 47.0).
If the annual QBR trends hold true, some of those players must considerably improve their consistency if their team is to snatch a spot in the championship game in Pasadena.
McCarron, however, might simply need to hold steady in order to lead the defending champion Crimson Tide to yet another spot in the title game. That could prove trickier than one might expect for Alabama’s senior star, who has a wealth of skill talent at his disposal, but will line up behind a rebuilt offensive line this fall.
In a recent blog post, ESPN.com’s Tobin Petipas examined the Tide’s o-line from 2012 -- a group that featured the same starting five in all 14 games and ranked among the most dominant offensive fronts in recent memory. Three starters -- D.J. Fluker, Chance Warmack and Barrett Jones -- became 2013 NFL draft picks, leaving behind only elite NFL prospect Cyrus Kouandijo at left tackle and right guard Anthony Steen, who was actually the only member of the group who did not commit a penalty or allow a sack last season.
Nonetheless, it will be difficult for Alabama’s rebuilt offensive line to provide the same dominant effort that allowed McCarron and the Tide’s running backs to perform so effectively in 2012. Alabama’s running backs averaged an SEC-high 4.1 yards per carry before first contact and were not touched until five yards past the line of scrimmage on a whopping 34.6 percent of their carries thanks in large part to the big holes the offensive line created.
Further, McCarron passed for 13 touchdowns and no interceptions off play-action fakes last season, largely because of the fear that Alabama’s rushing attack struck into opponents’ hearts.
New offensive line coach Mario Cristobal has no shortage of talent at his disposal, but his two returning starters are the only players in his meeting room who have started a game.
The Tide’s rushing production and McCarron’s Total QBR numbers could slide if Cristobal’s line struggles to adjust, but we should learn quickly how much of a concern the line will be for Nick Saban’s club. Alabama opens against a typically stout Virginia Tech defense, which ranked in the top six in FBS in negative plays forced and quarterback pressures (hurries and knockdowns) last fall.