Firstly two quick links to primers for megagames for non-megagamers as really they are better examples than anything I can explain:
When writing something about mistakes, it is very difficult thing to avoid making someone feel bad. Its also very difficult, at the same time, to avoid sounding like a big head when you or a member of your team does something that is a masterstroke (or even yourself).
I’m going to try to do this without doing either but advanced warning, this may not work.
Actually, I think that isn’t as difficult as you think… the pivotal moment I wish to talk about came about from three people talking together and the scenario had been set up so that it could happen.