Allen Park — Finding quality offensive line depth is a struggle in the NFL.
That's always been the case, but more so since the league and its union agreed to reduced practice time several years ago, limiting how much time players can spend in pads during the offseason and contributing to the stagnation of development for the game's more physically demanding positions.
On paper, the Lions have pieced together one of the league's most formidable starting offensive lines. But best-laid plans have been scrapped due to injuries the past two years, with the projected starting five never sharing the field for a single regular-season snap.