There are points on the edge where breakthroughs happen. Wily old contemptibles identify them by walking the front line, preparing for frontal attacks, knowing how to stop the gaps. In attack, being flexible and mobile counts, and knowing where to find the weakest place, the flimsiest defence, the most dispirited garrison.
Publishing probes the no-man’s-land between writer and reader and advances judiciously, supports those who propose believable plans of attack, and is there to cover a retreat or recovery after a rout.
Digging in is digging down, and digging down is for diamonds or death.