What if you could build a perfect football manager?
The closest you could get to perfection would probably be if you could apply a few cheats to a football management simulation computer game, because in real life this is a profession that rarely runs smoothly.
Managers are the men largely held responsible when tactics fail or new signings struggle to impress and ultimately they need to display a variety of qualities to last in their jobs.
Sir Alex Ferguson managed to do that over 27 years at Manchester United, a remarkable achievement that is unlikely to be matched any time soon.
So what if we took Ferguson's best qualities and matched them together with some of the bosses still in work to create one all-powerful super manager?
Looking at eight of the key ingredients that make good managers, here are the bosses whose brains we're going to pick: