How to Improve the Productivity of Your Inbound Call-Center Reps

It's no secret that there's no better time to sell to your customers than when they're already calling to order from you. When they call to place orders, they're open to you initiating a consultative selling conversation. It's also no surprise that you have some reps who do a better job at this than others. But do you know exactly how much better some inbound reps are than others?