Now we get to the hardest unit to evaluate: the offensive line (which is probably why it’s just me doing the ranking this week). The problem with line play is that its successes and failures are so intertwined with other players. How much of the running game is on the line? Is that sack because of a failed block or because the QB held on to the ball for too long?
Every unit has the problem of overlapping responsibility, but nowhere is it more apparent than offensive line, where there really is no stat that is primarily about them.