A very good customer of the dealership tells you in confidence that he does not like dealing with one of your sales people. He threatens to take his business somewhere else unless you assign another sales person to him. Your dealership has had assigned territories and has strict rules on that.
This is your most experienced sales person. Other customers have love him and the reports are great. He also produces consistently well and his sales numbers are usually increasing rather than decreasing. You know he will be upset if you assign someone else to his account.
How would you handle this situation?