The problem, and I say this without trying to be snarky, is a lack of intelligence and competence by our OC.
It is the reason we take a full half to do anything and the reason we do not focus on trying to find our niches or impose our strengths on the other team. The bottomline is that our OC is not able enough to do this, he needs a few quarters to feel out the defense and get a feel for where our strengths & weaknesses lie.
He cannot do this by studying film like most coaches, he needs actual game possessions to feel around in the game. That limits our ability to score for 2 quarters and it limits our ability to stretch a lead.
It really is more a function of the lack of intelligence or lack of competence on the part of our OC though. We cannot scheme weaknesses into our plays because we don't know them well before game time.