#3 Results over beautiful football
Ernesto Valverde is a type of manager who is more interested in getting results, and not just play beautiful football.
From the criticism he's getting for losing some games and playing boring football, one thing I can make out is that the Cules are terribly impatient. Valverde's side may not play the most beautiful football across Europe, but they are certainly the most efficient and effective in what they do.
EV has mastered his squad in record time, and his players have been making drastic improvements since the time Valverde took over. The likes of Sergi Roberto, Samuel Umtiti, Ter Stegen, and Jordi Alba are some examples of players who have upgraded their game tremendously.
Efficiency is the key to success, and nobody knows it better than Valverde.