Falcons should focus on beefing up lines at combine

Here's a closer look at the positions the Atlanta Falcons could target at the NFL combine in Indianapolis:

Positions of need: Although the Falcons had much better success pressuring quarterbacks this past season, the defensive line still needs to upgrades for rushing and run-stopping. Veteran defensive tackles Jonathan Babineaux and Tyson Jackson might not be in the plans moving forward, while former Miami Dolphins defensive tackle Earl Mitchell visited the Falcons last Friday before signing a four-year, $16 million deal with San Francisco 49ers. Seven-time Pro Bowl defensive end Dwight Freeney, 37, could decide to retire. Plus, versatile defensive linemen Adrian Clayborn (biceps) and…