mark sets up hard no-around - that around space is the only place there aren't defenders. dump defender can poach to stop any first throw to the cutters also.
if the iso cutter starts cutting deep... you just pass her off to the deep
if someone else cuts in, just pick her up
if they dissolve into ho or vert, you immediately tighten up
same thing if they go into vert. You can keep the force into the stack, or revert back to whatever force you called on the line, whatever is easier.