Admittedly, it helps when your current franchise quarterback has led the league in passing attempts twice in his career, and it’s also favorable when your franchise has a history of unimpressive quarterbacks. But what Matthew Stafford did for the Detroit Lions on Sunday against the Pittsburgh Steelers is historically impressive, to be sure. When Stafford threw a 79-yard touchdown pass to Calvin Johnson with 10:27 left in the second quarter, he passed Hall of Famer Bobby Layne as the franchise’s all-time leader in passing yards. Stafford, in just his fifth season, set the mark with 15,782 yards to Layne’s 15,710 from 1950 through ’57. And in his 55th NFL game, Stafford also became the fourth-fastest player to reach 100 career touchdown passes, behind only Dan Marino (44 games), Kurt Warner (50 games) and Johnny Unitas (53 games).