The secret to being a writer is to write.
That was a good review of the writing problems in The Crystal Skull. I think one of the problems he sees though is easily explained. I'm talking about the "why did the fire him" issue. Clearly, Spielberg and/or Lucas were simply playing the "anti-communism is bad" meme. Many movies set in that era play that card. It's like when Lucas included the exchange in Revenge of the Sith where Anakin says "You are either with us or against us" and Obi replies "Only a Sith Lord believes in absolutes!". Clearly Lucas wasn't going for thematic consistency here (the whole Dark Side versus Light Side thing sounds like an absolute to me) so much as he was trying to score some cheap political points with the crowd he hangs with.