> The reason they are so successful is they have employees take your order as you are waiting, so there are never any bottlenecks around order taking and order

> The reason they are so successful is they have employees take your order as you are waiting, so there are never any bottlenecks around order taking and order receiving. In-N-Out does this at the busier drive-thru locations (which is all of them). It's still a bit more than ten minutes when it's at max capacity, but much less than if they had the traditional one order at a time at the end of the line.