Many untrained managers rise to the challenge successfully.
But every successful manager has learned lessons along the way. Collecting this important information has the added benefit of signaling that the new manager values others' opinions. Don't take immediate action. If it is clear that changes should be made, for example in personnel, ask several people in the organization for their advice before doing anything. Even after building confidence and experience, asking others for advice is rarely harmful and always helpful, if it is considered seriously.