To be a leader should have some peculiar ability such as learning ,decision making ability,organizing, teaching, executing and appealing.i think decision making ,team organizing and  plan executing  are the most important things to a effective leader. A wise decision will find a right way of work,avoid mistakes or dangers, and will rapidly get succeed. Make a reasonable decision should consider the current situation ,probably risk and the anticipate target.Then,when a leader makes a decision,should he let others take part in? i think the answer is yes. But after the discussion, the leader should decide by himself.  Firstly,  others taking part in decision will help the leader consider the problem more comprehensive.A men hardly can think about everything, it's need collective intelligence. the more people take part in ,the more risk or dangers would be considered. For example, last year our work team organized a competition. our leader invited some people to discuss, everyone pointed out lots of details to be notices. during the competition , some emergency had been considered in that discuss. Thoughtful discussion contributed for  the successful organization of competition.Secondly, though  listening to others option,the leader may be enlightened to more creatively ideas. In lots of meeting ,the last decision are not prepared before ,most are furthered   Thirdly, attending the decision would stimulate team member's sense of responsibility and honor. If their advises are accepted,they often fell pride ,and will contribute more ability to the company. But to the leader , make a resolution from all people's diverse advises is the most important .And this is the key to be effective. Even to do a opposite decision from most people.Argument lasted long time will reduce the efficiency, at this time ,it need lead to decided right now and insist his viewpoint.For example,when Jobs decided to manufacture iphone, most of people didn't agree,but Jobs insisted his idea,and finally,iphone sold very well.So let more people attend discuss,and absorb good views from them ,then make decision .This is the  progress of a effective leader during his management.