Responsibility, accountability, authority - but what about power?
How much power do you really have? It may be more than you think. Even formal authority is rarely permanent. It must be constantly earned and re-earned. Rather than bemoan the fact you think you don’t have the necessary authority, plan to acquire the power you need to achieve your goals. From the options above, choose those that are viable for you. Then go for it. You may have more authority than you think—and more power, too.