Answer: Brand manager   
Explanation:
  The decentralized system is one of the type of organizational firm that basically managing all the operations and the functions of the firm. The decentralized system helps in taking the various types of effective and major decisions in an organization.
 The main responsibility of the brand manager in the decentralized system is that it helps in adopting the various types of strategies for the purpose of achieving the given target in an organization by maintaining the brand integrity.   
  According to the given question, the brand manager is basically responsible for managing the overall sales management, planing, budgeting and also the total performance of the company profit. 
   Therefore, Brand manager is the correct answer. 
 
        
             
        
        
        
I really don’t know but mark me brainliest because I lost most of my points
        
             
        
        
        
Answer:
Two-way flow 
Explanation:
Personal selling is one of the methods used by salespeople to drive sales. It involves face-to-face interaction with customers who are persuaded to purchase the product.
This method relies heavily on effective communication mostly the two-way flow of communication.
Two-way flow of communication means that when a message is conveyed to the customer there is feedback to the salesperson. The feedback is used to decide the best course of action to be taken in order to complete the transaction