Louisville's offensive line could hold the key to 2016

Lamar Jackson is the headliner on the Louisville offense, but it could be the offensive line that holds the key to the season.

The reason is simple enough: The Cards have struggled up front, allowing 41 sacks in both 2014 and 2015. Last year, coach Bobby Petrino was faced with a first in his coaching history: three freshmen starters on the offensive line, including true freshmen Geron Christian and Kenny Thomas.

“I don’t sleep well with that,” Petrino said.

The last time Petrino started a true freshman was when he was offensive coordinator at Auburn in 2002, playing Marcus McNeill (he ended up starting 28 games and becoming a first-round NFL pick). Most coaches want to avoid playing true…