Mobile order and pay technology has developed quickly in the food industry and is now widespread, even at quick-service chains like Chick-Fil-A. But McDonald's doesn't want to run into the same problems that have plagued other companies that have jumped on the trend, like Starbucks, which said that wait times expanded and sales suffered because it wasn't prepared for so many customers to order by phone. To counter this, McDonald's is redesigning its kitchens to improve the flow and speed up service. Curbside pickup also is expected to take the burden off in-restaurant lines and the drive-thru, which accounts for 70 percent of all McDonald's customers.