Discard the images you may have of athletic coaches who storm, scream, demean, and threaten in order to draw the utmost performance from an athlete.

• 你的脑中可能描绘这样一幅画面：体育教练正在咆哮、尖叫、贬斥并威胁，好迫使运动员发挥出极限水平。你大可不必这样想。