The first half Inter played badly it is a fact that cannot be changed in this match 
even the 3 goals scored by Joao Mario he did it easily because there was no guard against him but indeed the change of plan in the second half was very good which made them able to equalize the score in this match but for this last match it is still a little complicated because it is their determinant whether they can or not at the top especially Sociedad also until now in the Champions League always played very well.
But before that they must also think about next week's match against Napoli because this is also important for them in order to continue to maintain their position at the top of the current standings.
even the 3 goals scored by Joao Mario he did it easily because there was no guard against him but indeed the change of plan in the second half was very good which made them able to equalize the score in this match but for this last match it is still a little complicated because it is their determinant whether they can or not at the top especially Sociedad also until now in the Champions League always played very well.But before that they must also think about next week's match against Napoli because this is also important for them in order to continue to maintain their position at the top of the current standings.
I believe that Inter will still try to avoid becoming second in the group, but beating Real Sociedad isn't easy. Though I think if Inter can have their best eleven to start the game, Real Sociedad will need good form to defend against them and save that draw. In this case coming second can become a pain in the ass as so many big teams are waiting and it could also become ugly for everyone who likes to see the big games a bit later in the knock out rounds. Seeing some big teams eliminate each other in the round of 16 is not that great.