What is the advantages and disadvantages of "decentralization" in an organization ?

decentralized activity which is coordinated properly can produce best results as targeted.it should be viewed as a football team playing in the court.if each member feels to shoot the goal individually himself and the efforts are diversified unilaterally ,we could imagine the results. the same thing is happening in the case of centralized organizations.if all the members are submissive to the leading man certain results can be achieved,but it never equals to the team work of a planned and motivated decentralized force.more brains can think better together if motivated and guided properly in any function.