In order to meet the "World Cup in South Africa", a certain country organized 15 football players to conduct a secret confrontation training. The coach divided the players into two groups with unequal numbers. How many ways does the coach have?
为迎接"南非世界杯"，某国组织了15名足球队员进行秘密对抗集训，教练将队员分成两组，人数不相等，那么教练共有多少种分法．
<result>7</result>