This. You fix the OL and DL, that will cover for A LOT of other deficiencies. A good DL that gets pressure will cover for a lack of talent at CB. With a good OL, it doesn't much matter who your receivers or running backs are. It all starts up front, on both sides of the ball. Pick the best 5 receivers you can think of. I don't care who they are. If the line can't protect the QB long enough for them to run their routes, then they're absolutely useless.