What criteria do you use to hire your drivers?

What criteria do you use to hire your drivers?
At the roundabout from the Henin Baumont expressway towards Cantin, one of your truck drivers did not even see that we were in the roundabout. So we have a Ford KA it does not have a 4x4 it braked 20 cm from my car in the roundabout and all it was able to do was 1 wave. My daughter in the car seat is shocked and the other group 3 car seat has a stop in the front seat.