Is this legal? I noticed it playing online against some teams where the entire line crashes in Unison and gets immediate pressure. I don't know how to do it because when I push the have the line crash a certain way they do but it looks nothing like what I'm talking about.... It looks as if the defense is sharing the same brain and all go the same direction at once...... It was done against me recently and made it darn near impossible to run against. If it is legal can somebody please tell me how to do it?