To a winner, complacency and overconfidence can be destructive. To losers, desperation and despondency are just as harmful.
Bill WalshStrength of will - is essential to your survival and success. The competitor who won't go away, who won't stay down, has one of the most formidable competitive advantages of all. In evaluating people, I prize ego. It often translates into a fierce desire to do their best and an inner confidence that stands them in good stead when things really get rough. Psychologists suggest that there is a strong link between ego and competitiveness. All the great performers I've ever coached had ego to spare.
Bill WalshThe [best] coaches... know that the job is to win... know that they must be decisive, that they must phase people through their organizations, and at the same time they are sensitive to the feelings, loyalties, and emotions that people have toward one another. If you don't have these feelings, I do not know how you can lead anyone. I have spent many sleepless nights trying to figure out how I was going to phase out certain players for whom I had strong feelings, but that was my job. I wasn't hired to do anything but win.
Bill Walsh