The Eagles have taken either an offensive or defensive lineman in the first round in seven of the past 10 NFL drafts. Two of the three exceptions were when the Eagles traded out of the first round, although they used their second-round pick on a lineman in those drafts, too. The Eagles have the fourth overall pick in the draft, which begins Thursday. It’s one that Eagles general manager Howie Roseman recently called a “meat and potatoes draft” in reference to the plethora of offensive and defensive linemen. Two left tackles could go in the first four picks in Luke Joeckel and Eric Fisher. A third, Lane Johnson, is expected to go in the top 10. On defense, there’s a good chance that two linemen could go in the top five in Sharrif Floyd and Star Lotulelei. “You want to build along the lines in the National Football League,” Roseman said. “I think it’s hard to find really big men who can move, so when you get those guys, they’re very clear.” That doesn’t mean the Eagles will go in that direction, although they can certainly use help up front. Left tackle Jason Peters, a perennial All Pro, missed all of last season after having two surgeries on his Achilles tendon. Peters, 31, was a full participant in the Eagles’ minicamp last week. At some point, the Eagles will have to look for his successor. The same is true at right tackle, where Todd Herremans is also coming off a season-ending injury, and he will turn 31 during the season.