Side-line coverage in two-man

[Vinski]

I have a question regarding the proper two-man coverage when A1 is trapped against the side-line at about the middle of their front court on the opposite side of where the trail official is located. This seems to be a real blind area for two-man. There are times when the ball goes OOB in those situations, but neither trail nor lead seems to have a good look at it. To get a better look at the play, does the trail come all the way over to that side to get a better look, and/or does lead come up and out wider to get a better look? Or, something different?