Why the good relationship between manager and employee always gives its fruits performance results ?

Skill for a Manager is to never carry ego & never go by the face vaue of people, instead go with the actions & take decisions right for the business. To be a good manager, one should think beyond being a manager, as a leader & further as an influencer.

Because two are better than one. It makes them a good team. A team whose member understands each other and are always ready to support and back them up.