What you're saying would be true except that if the employee saw that the company was headed nowhere and they left after 2 years, nobody would say, "Hey! But y

What you're saying would be true except that if the employee saw that the company was headed nowhere and they left after 2 years, nobody would say, "Hey! But you agreed to a 4 year plan. We have paid you all of this stock that you haven't vested yet."