You always have to prepare for the obstacles that are going to come. Consequently, when they do come, it doesn't affect you mentally near as much as when you're unprepared for them.
When I work a game as an analyst, all I do is look at the game like a coach. Why was something successful? What makes it work? I just try to use my expertise and whatever insight I have to the game.
Teamwork is the foundation of success. The three universal questions that an individual asks of his coach, player, employee, employer are: Can I trust you? Are you committed to excellence? And, do you care about me?