When I hear Seymour talking that they play 4-3 but with two gap I wonder what the pros and cons are. Why do most teams play 4-3 1 gap? Someone on this board was talking a little about it. Does 1 gap mean a D line man can penetrate if his gap is vulnerable? Does 2 gap mean a D line man must be more tentative ... must wait or delay until the play is determined? If so could this lead to not "getting to the QB" as quickly? What are the advantages of 2 gap?