Ron Adner and I have been intellectual sparring partners and friends for a very long time. He's just come out with a terrific new book, "Winning the Right Game" which tackles head on the strategic challenge executives confront when the ecosystems they compete in are disrupted. The problems start, as Adner explains, when strategists choose the wrong "game" to begin with, meaning that even if they succeed, they will ultimately lose. The book talks about defense, offense, timing, mindsets and what has to be one of my favorite chapters the dangers of an "ego-system" in which leaders let their preferences (and their hubris) undermine their judgment.