In your experience, what one skill does a project manager need to succeed?

excellent time management and  teamwork spirit are the most recommended skills

Greeting ...

If you want to be an effective project manager, you need to develop yourself in more areas than are considered typical project management skills.

The three critical areas you need to focus on are...

• Project Management Skills
• Interpersonal Skills
• Personal Effectiveness Skills

Creating a personal development plan that addresses these three areas will give you the project manager skills you need to be a Great Project Manager!

Effective Communication is the one skill which a Project manager needs to master in order to succeed in a project, 

Having a good work relationship and attitude with his employee and customers in order to succeed in a project. Next is good communication and to complete in the project in timely manner. Because i believe in saying that first impression last. 

Human relation or interpersonal skills

1.you use it to manage employee

2.you use it to motivate employee to work

3.you use human relation or interpersonal skill at all level of mgt.

4 you use it for effectiveness and efficiency in the work place.

In my view there is no one important skill for a PM. Project manager must be equally well versed in Planning, Time management, coaching and leading the team to improve the productivity and ensure impediments are removed as soon as possible.

Having the foresight to complete the project in timely manner and get everyone on board with the plan.

Technical skill with effective communication 

In the majority of projects, the PM will need the support from many sources, and resources (sometimes hundreds of people) where s/he has little direct management control.  What defines the successful project manager is the ability to engage proactively with anyone whom support is needed. In essence, the key skill is: excellent interpersonal skills...  

The Leadership and the "Hands on Experience" 

The leadership is a main character trait of a successful Project Manager to be able and communicate with the project organization; t team, sponsor, customer, main stakeholders , higher committees . 

However, the leadership without the "Hands on Experience " is not enough., because projects vary in scope complexity, time urgency, budget size , resources and quality.   

Once both the Leadership and Hands on Experience are available, it will enable the Project Manager to apply the necessary processes and adopt it as needed to the Project / Program on hands.

One most important skill for a project manager to succeed is " expertise in communication " .