Clearly product managers at the Starbucks coffee chain have no problems getting customers to drop by their stores in the  morning and purchase coffee. 

However, as is the case with product  managers everywhere, the Starbucks product managers are under pressure  to keep growing the firm’s profits. 

If they are going to do this, then  they need to come up with a way to get their morning customers to come back to the stores later in the day and buy more coffee.