The Panthers re-signed fullback/tight end Richie Brockel on Monday before they had to tender him as a restricted free agent, but they’ll be going the tender route with tackle Byron Bell. No member of the Carolina Panthers 'offensive line took more heat last season than right tackle Byron Bell . The tender is worth $2.187 million, and the Panthers would receive a second-round pick as compensation if another team offers Bell and the Panthers decline to match it. Bell has made 40 starts at right tackle for the Panthers over the last three years and his performance is one of the reasons why the Panthers need to focus on upgrading the offensive line this offseason. Bell is big and strong but struggles against speed pass-rushers. With a strong draft class at tackle, the Panthers also might look to fill one of the two starting spots with a first- or second-round pick. Filling the left tackle position from within would be a huge benefit for Carolina, which had only about $7 million left under the salary cap before the day began.