More and more companies are tying incentive pay to customer metrics. TIAA-CREF, the big financial services company, includes customer loyalty score improvement in senior executive compensation. Phones4U, a UK mobile phone retailer, announced a big increase in the weight of Net Promoter scores in its frontline pay plan. Pep Boys, a US auto parts store chain, reports in its proxy statement that customer metrics are now an important part of its executive compensation system. And Enterprise Rent-A-Car links its Enterprise Service Quality index customer feedback scores to promotions.