"Service - no difference, no change. Although you can automate as much as possible. Re: sales and marketing - more communications to the best customers, and create a rewards program."

"Normally worst customers are less than 20% and it should be handled by a female employee in a polite way. Try to address such customers with the prolonged commitment from 30 to 90 days. The objective is to protect the good customers."

"The best customers buy again and again and treats the salesperson with respect and as a friend. Mostly the best customer is curious and learns fast."

"This is not my area of expertise but I don't think you should categorize customers as best or worst. They are the population you serve and all deserve your best."

"I would think that analytics would be the best way to do this. Once trends are determined, a strategy session to brainstorm on service options for customer type should be considered with a cross-functional team to ensure the overall customer experience is addressed."

"There is no such thing as a worst customer. Every customer feedback or complaint is an opportunity to better your service offering. In fact, customers who do not give feedback usually simply change brands whenever they are unhappy, and are thus less loyal, whereas customers who do give feedback or complain give you an opportunity to restore their faith in your brand or organization. Be that as it may, it is important to pay attention to the customer, what they are saying, their choice of words and references during the conversation often give hints about who they know, how connected they are and what will happen if their issue is not resolved. These are called "warning signs". One customer might say something like: In my line of work, we often deal with legal issues and we would not let this.... You can immediately see that this customer is connected in some way or another in the legal field. You can almost predict their next step should things not go the way they are expecting. You can either change your approach or prepare for what is to come if there is nothing you can do to change the outcome."

"Every customer is the best customer and we contact center operators make them the worst. Meeting customers expectations in a timely manner will keep them happy."

"Complaints take preference and even a few problems far out weigh the massive good performance. Some customers can not accept that even internally perfection is impossible, it is a goal not a guarantee."