"Yes, management and leaderschip are both critically important"

Yes, management and leaderschip are both critically important in the ongoing success of an organization, but no, they are not interchangeable. On the contrary, the role of the leader and the role of the manager are utterly different. The responsibilities are different. The starting points are different. The talents required to excel at each are different (...) This doesn't mean that you cannot excel at both. You can. But it does mean that, if you want to choose between one or the other as your primary focus, you need to be aware of the difference (Buckingham, 2005)