I am fortunate in having spent most of my career working at fast-growing and dynamic businesses. In this kind of situation, the jobs people do tend to constantly expand, and they are called upon to grow with the role. That is challenging and involves a lot of rapid learning, but it is also exciting. In my experience building and maintaining high performance teams, when people feel intellectually stimulated at work they are actually more likely to be engaged and motivated. It is when they are bored and under-utilized that they take that call from the headhunter.