Head coach. Master tactician. Workaholic. A man keen to learn from his mistakes and who will accept only the very best from his players.
If anything has served to underline all of those elements of Unai Emery's personality, it is the past four days.
Emery has never denied or thought it necessary to apologise for his footballing obsession, saying: "In each profession, you need to feel passion for that in order to give it your best performance. Football is my passion."
It has never suited everyone that he has worked with. La Liga legend Joaquin was a great admirer of the coach when they worked together during his time at Valencia but even he finally cracked under the pressure.