He made quite a few mistakes and look really shaky when the game was at 0-0/0-1, but I can't fault him since he's hardly played and has been shown no confidence. He was making some big tackles, but his positioning and blocking on some instances was awful.
Yes.
He has been good later when the result was 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0.
But at 1:0 he was scared, slightly all over the place as always, I was always afraid when the opponents attacked somewhere around him, and in that one action where he made a tackle in the end (and people on chat said how he made a great tackle), he made 2 horrible mistakes in that action which led to a huge chance for Deportivo for 1:1.
First he passed the ball or made a poor clearance and gave the ball right into a feet of a Deportivo's player at 11-12 meters from our goal.
Deportivo's player then tried a shot, it was blocked by someone (if I remember), then some other Deportivo's player crossed the ball to a place around 6-7 meters from our goal line, Bartra totally missed the ball (failed clearance, horrible reaction), and then the ball got to the Deportivo's player who was alone with Bravo in 1 vs 1, and then when Deportivo's player tried to dribble a keeper and since he hogged the ball for too long, Bartra got back and finally made (a good/brave) tackle.
He was extremely shaky until 2:0.
After that he was good.
But as said before about Bartra, he USUALLY is GOOD at home matches, when we are winning 5:0 and similar, and when in the defense we have 4 players versus 1-2 opponent's players who rarely get into our half.
He is, and always was good enough for small matches at Camp Nou which will end with 5:0 or 5:1, or for away matches when we finally lead 4:0 and similar.
His problem always were 0:0 matches when the pressure is on, or any match against a stronger opponent like Atletico, Real, Chelsea etc.
In those matches, more or less, Bartra ALWAYS makes at least one or two horrible mistakes after which we concede a goal.
It was a preseason, but once again, he always looks like a poor defender against better opponents:
Passion is there, he loves the club, he can do some good passes, sometimes he can score.
But in the defense, there haven't been too many changes in the last 2-3-4 years in terms of his quality of defending against any stronger or semi-decent team on away matches, when the score is 0:0, when the pressure is on, or when the opponents attack us with more than 1-2 players (unlike in Nou Camp matches where he usually plays and when our defense always play in 4 versus 1 or 4 versus 2 actions against usually very defensive and afraid-to-attack bottom table teams).