Discuss Business Communication As The Life Blood Of An Organisation?

Communication is very essential for all the levels of business. For top level to communicate the imp. Decision, policies, commands, instructions, change in any type of business polices or requirements and  also for having the feedback to/from their middle and lower level.
Middle level use communication network to direct, lead, motivate, make convince to do the work effictively and efficiently to the lower level persons and having feedback.
Lower level of business use communication to interact with each other to coridinate the business work.