who are proud to be part of team 是修饰people的定语从句.that shares a people 又是修饰team的定语从句.that在定语从句中作主语,指代team.所以去掉定语从句部分,原句就变成了People vision to be the best employer in each community.（vision 当动词时有“预料、显示”之意.）