How competitive strategies help to explain why Electronic Arts lost its leadership

How might different competitive strategies help to explain why Electronic Arts lost its leadership in the video-game market to Activision Blizzard? 2. How would you use the adaptation model to advise Activision Blizzard on the best way to maintain its leadership in the video-game market? 3. If you ran a small video-game start-up, what would be your strategy for competing with EA and Activision Blizzard