During an interview with San Francisco 49ers head coach Bill Walsh, he shared some of his secrets to planning for worst-case scenarios—because they will mostly likely arise. He conditioned his players to deal with adversity and injury, the two most crippling disadvantages a team might face. Walsh spent time talking with his team about how it feels to play in enemy territory and what they are thinking when they take the field. He turned these mental disadvantages into advantages by changing the way the players approached the situation.