Hiring the right football manager for your side is a difficult task and, if the wrong decision is made, it can be potentially disastrous for any club worldwide.
It is unsurprising, then, that when certain managers acquire a reputation for performing well in a certain area of their job they quickly become a sought-after asset.
Whether it be success in cup competitions, winning promotion or, indeed, securing survival, to some clubs it is as important as a league title success. International management, too, has its specialists in different areas.
Who, then, are some of those managers often hired for a certain standout skill or quality?