Problems Happen When You Are ‘Asleep at the Wheel’
You should pay close attention when driving. It is dangerous to drive when you are distracted or when you are tired. If you lose your focus, you could cause a crash. The same could be said in other situations in life. And that brings us to our expression for today: to be asleep at the wheel.
Source : https://learningenglish.voanews.com/a/problems-happen-when-you-are-asleep-at-the-wheel-/6697751.html