place people in posts where they have not been able to use their specialized knowledge;one’s education does not meet the needs of one’s job
学非所用xué fēi suǒ yònɡ
所学的不是所应用的，所应用的不是所学的。比喻学习和实践相脱节。one does not do that which one has learned, one’s education does not fit him for a certain job