Coercive power is the opposite of reward power, and is based on the ability of the individual to sanction (punish) or prevent someone from obtaining desirable rewards. Rewards and punishment are powerful motivational tools, and leaders are generally better served by the exercise of reward power than by the exercise of coercive power. But only if reward power is used effectively. Look at these three types of power as POSITIONAL power and conferred on one from the ORGANIZATION, e.g., they come with the position of manager, and each manager has at least some of each of the three "powers of office." The remaining four, however, are in a different domain entirely.