Interesting article in Sloan Management Review on linking customer satisfaction to growth. Looks based on very thorough research on customer satisfaction metrics and their subsequent behaviour – especially passing on recommendations. Of course, to do the customers-to-sales link properly, you would want to break apart the three elements [a] customer win-rate, [b] customer loss-rate .. and their combined effect on the total customer base .. and [c] purchase rate. See Strategic Management Dynamics chapter 6.  Do beware ...