Mettenberger has thrown for 2,733 yards and 20 touchdowns this season for the 18th-ranked Tigers. He's enjoyed watching fellow quarterbacks around the league develop since the beginning of their careers.
"You look at all of us, you kind of look at all of our first years starting, it was kind of rough," he said. "We had to go against some of the best defenses in the country ... we obviously took some time to show maturation throughout our careers. We've all kind of had rough patches, we've all kind of settled into our own game and really have had pretty good careers here at the tail end."
The only non-senior of the bunch is Texas A&M's Manziel, who as a redshirt sophomore will be eligible for the NFL draft after this season. Manziel has refused to talk about his future, but most believe that this will be his last season in College Station.
Manziel has followed up on his Heisman Trophy-winning freshman season to throw for 3,313 yards and 31 touchdowns this year for the ninth-ranked Aggies.
Coach Kevin Sumlin was asked recently what it would mean if Manziel could join Archie Griffin as the only two-time Heisman winners.
"We've got a couple big stages these next few weeks," Sumlin said of the Aggies, who finish the regular season at LSU and Missouri. "Performances by him and the rest of the team these next few weeks are going to impact the awards race and where we're going to be in the bowl conversation. We know that. We have to handle things one at a time."