Players who propels the managers tactics is key and the same goes with manager being flexible with his tactics to accommodate the available players in the squad. Well, Osasuna defence was something else and that penalty awarded to Kylian Mbappe shouldn't have been a foul or penalty. He was seen stepping on the defender. If this is how they intend playing, Barcelona or Atletico Madrid will win the league by January. 
The quality of the players that Real Madrid has should not be blamed entirely on the coach. Yes, it cannot be denied that there were some mistakes in the tactical plan. I noticed several times that the players were positioned a little wrong during the attack or they could not finish the attack properly. Especially how to break through Osasuna's tough defense was unknown to Real Madrid. Watching Osasuna's game, I felt that they went on the field for a draw and I think they still succeeded in their plan. Because it is not possible for any player to play against the referee in the match. It was unexpected for the referee to make such a harsh decision at such a crucial time in the match, where there was no clear foul. The referee's decision in the match was completely against Osasuna.