I own a small agency but don't want to run day to day or team. Should it be a GM, Business manager, other?
You should hire someone that understand how Management Operating System (MOS) works. An MOS is a process that allows the managers to drive results in your small business. You business has a MOS but it may be broken or flawed. I have used this system to drive results at ULA, Caterpillar, Bway, and others. If you don't, then you only minor results. This MOS system will GUARANTEE results.
