Paulinho is the example how IQ, experience and some courage are important.
He is probably the least good in technical area among our midfielders.
But he has the biggest "balls".
He understands when to go forward, when to do this or that. In general, he doesn't do stupid mistakes.
I am not saying that he is the new Xavi or something, BUT he understands his role in the team and he knows his strengths and weaknesses.
For example, if we compare him with Adama or Halilovic (ok, they don't play at the same position), those two have 100x times more technical talent than this guy.
But Adama will make 128 dribbles and create nothing after that.
Halilovic will make 280 silky moves and create zero end product.
This guy will touch the ball 10 times per match, score 1 goal, get in to 2 deadly positions and make 2 assists, lol.
This is what happens when you know what you should do on the field, where you should run to etc.
My point: technical talent alone means shit, if you don't have skills in other areas.
And sometimes even way technically less skillful players can be way better than little wizzards who lack in IQ, courage, decisions, experience etc.