I was taught to keep shooting until the threat is neutralized. I taught that same philosophy to my students for 15 years.
Another thing that bugs me. Marshall and Fackler both have some good ideas. If they would work together, and BOTH be willing to give up preconceived notions, we would all be better off.
It seems to me that BOTH of them, are so damned busy trying to "prove" their preconceived notions that they are blinded to any information that doesn't fit those notions.
They're both potentially good researchers. What a pity they both put petty jealousies before the advance of knowledge.:(