A properly attired and attentive flagger can control traffic. The only message conveyed here, is that the company doesn't care about traffic control. They're busy and trust that you're performing your job in a professional manner. Relaxing in lawn chairs or not paying attention to your job is asking for trouble. A professional flagger dresses with an orange reflectorized vest, yellow or orange hard hat or possible an orange ball cap, for greater visibility.
Some states use only flags to make motorists aware of traffic control.
Flagging can be a physically demanding task. This improves circulation and helps prevent back strain. OK, you've got the proper attitude, training and are professionally dressed for the job. You should check with your supervisor about the appropriate control requirements for your local or state traffic control procedures for signs and sign placement. Generally, you take a position about 150 feet behind the flagger ahead sign.