[JRutledge]

I was always taught to have the "L" coverage. The Trail has the division line and the sideline they are on. And the Lead has the endline and the sideline they are on. Two-person coverage is flawed, so if you have it you are going to have to do things you would not need to do with a 3rd official out there. But not sure how the Trail can clearly know that the ball was knocked out on the offensive player. The Lead's positioning is also poor as he is sticking to the lane it appears. This play might not have been as bad, but if there is a play near the line and someone is stepping on the line, the Trail has no chance. The Lead has to make those kinds of calls.

Peace