honestly guys, I just drew in old trafford with west ham with this tactic, could be my game but I don't think so, and I used it on a LLM against a a premier division side and they had like 12 offsides, even if I got beaten 1-0 it was out of a corner and well my players aren't much of thinkers. I am not gonna apologize for something that does work for me, I thought it could help you guys.
The Hig has a point there, this will only work with all-out teams, with forwards with running forward often, if not there would be no point in using this tactic.