Through which management function do you think a successful business manger can make highest and lasting impact on his/ her teams and how?

In my opinion,Leader or manager set an example with an exemplary behavior, knowledge and expertise. So, if the manager becomes successful because of his/her hardwork, excellent communication and expertise of his/her field then obviously, it sends a very positive message to all his/her subordinates and the people around him/her. But, as we all know, there is a term called " Organizational politics". So, if a manager is successful because of having excellent connections with the top management or having attachment with the powerful body in the organization then, it will surely sends a negative message to his/her subordinates. 

Greetings,All the management functions are important.But it is in Directing /Leading that you delegates the task to your subordinates.Through delegation the manager assigned the task to his subordinates based on their capabilities,the manager also partnered the skilled subordinates to unskilled subordinates so the unskilled can learned from the skilled subordinates.So in this management functions their skills is enhanced and their is learning .In this Management function also Motivation,Self confidence,trust and commaraderi in the team developed.

Without a doubt all these functions are fundamentally important for a successful team manager. to have a good functional team as a manager, i think it's important first to have a stable team who gets and know the functions of all the team members according to he/ her function. Based on that without a doubt organizing is the function I think who can have the highest and lasting impact.

This comes through top to down management layer. CEO defines the organization goals and other function leads manage the business and technology needs. 

As far as i am concerned, a good leader sets positive examples and knows how to use their strengths to help their team achieve goals. Successful managers get to know their employees and find ways to support them so they produce their best work. It's important to consistently communicate clear goals, expectations and feedback to your team. So, managers are expected to motivate employees to help them achieve their goals and objectives assigned to them. Leading and motivation are key roles. Instead, planning also involves setting objectives in advance and put forward a goal which is to be achieved within a stipulated time.

To achieve all the goals, there is a last function but not the least that needs to be used which is Controlling. Here, controlling is the most important of the four management functions. It provides the information that keeps the corporate goal on track. By controlling their organizations, managers keep informed of what is happening, what is working and what is not working and also what needs to be going on, what can be improved or changed.

Training,
Transfer of Knowledge & Good communication skills.

 Project forecasting, planning, organizing, coordinating and controlling of these functions are essential for a successful manager

letting the team mates to take out the best by themselves by motivating. 

I don't think any manager can sustain long time any team but a Leader can. So the person should have leadership qualities.

Appreciation, no one can climb alon, we need help to reach our goals withhout making anyone step. So you can.

Working with Bee'ah as a consultant