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In addition to the answers, I would like to add that management is art and science, and it is normal to find variety of perspectives and strategies in management. Therefore you should be:
1. Open mind to accept others' opinions
2. Ready to listen and negotiate
3. Able to develop yourself
Thank You
You have to be always ready to hear and face the facts, always keep your mind open and don't take sides if both sides sees them selves as the right side.