Portugal coach, Fernando Santos, must conduct a thorough evaluation if he wants to continue advancing in Qatar. The midfield must be the main priority, Portugal looks like there is no conductor in the middle so it is very difficult to develop the game and break up the opponent's attacks.
The next match for Portugal will be against Uruguay who have already drawn with South Korea, and I think Uruguay will not be so difficult for Portugal even though an evaluation for the Portugal team needs to be done before the match with Uruguay starts. Because not only does Portugal need to improve the midfield, but the defense also needs to be improved so that it is not easy for opponents to break into their goal.