"Just keep working from there, and building off that," Costa said. "You have to have an edge out there to be a lineman. You have to be smart, and you have to be physical. ... Last year, you come in with more the mentality that you want to make the team, and you want to play. This year, you come in with the same idea and have high goals."
Cowboys have youth blocking with Costa, 3 rookies →
"I'm glad they put the confidence in me," Costa said. "I'm just happy to have this opportunity."
Romo trusts his 3 young, unproven blockers →
