Why 49ers must follow Eagles blueprint to fortifying trenches

The Philadelphia Eagles are heading to their second Super Bowl in three seasons on the strength of their players up front.And that goes for both sides of the ball.Philadelphia has assembled strong units on the offensive and defensive lines, but it has gone about building those position groups in different ways.The lines are areas where the 49ers must devote resources to improve heading into the 2025 season.And with seven of their 10 scheduled draft picks coming in the first four rounds, the 49ers should have plenty of opportunities to add players to bolster both lines.The 49ers invested a third-round pick last season in guard Dominick Puni, who was a consensus NFL all-rookie selection. But the last time the 49ers got production from a drafted defensive lineman was in 2019, when Nick Bosa was chosen with the No. 2 overall pick.The Eagles have taken different routes toward building their offensive and defensive lines.Philadelphia has not chosen an offensive lineman in the first round since 2019, when they chose Andre Dillard. He never became a regular starter for the Eagles. But they found quality starters elsewhere in the draft.Left guard Landon Dickerson was a second-round pick in...