Ben Muth: Chris Clemons just beat Brandyn Dombrowski around the edge again for the sack. Marcus McNeill can't get back fast enough. Doug Farrar: He’s beaten Dombrowski for two sacks, just flashing past the edge both times. Ben, what it the technical term when a left tackle fans out to take on a speed rusher? I always have Joe Thomas in mind when I think of that because he does it so well, but it seems as if Dombrowski is trying to take Clemons on straight back, and he’s just getting beaten to the edge. Ben Muth: Usually, you just call it fanning or sliding out. The thing is you'll notice most guys will slightly change their set from play to play even if they are always supposed to fan out. One play they'll kick out at 45 degrees, other times they'll set vertically or straight back. And occasionally you'll almost fire out at the snap and take the guy right on the line of scrimmage, this is called a jump set. The reason you try to change up your set so much is to throw off the timing of a defender's hands/moves. If a defender gets used to making contact with you at a certain point in your set every play, it's a lot easier for him to time a move (whether it's a chop, swim, rip, shoulder dip or spin) and get to the QB. Doug Farrar: Cool, thanks. With a guy who comes off the snap as quickly as Clemons, would it be better to fan or slide out just to slow him down? Ben Muth: One of the worst things about third and long is there's not a whole lot you can do to change your pass set up. Because Clemons can line up so wide the only way Dombrowski can block him is by going straight back to cut him off. Even doing that Dombrowski has been late getting there twice. This is the reason why LTs are being drafted in the first round so often now, because it's tough to find a big guy who can move well enough to block the elite speed rushers consistently. Football Outsiders' Audibles at the Line