Yep, it was quite lucky that Barcelona only got a draw result in the first Leg. It will be a very bad experiment if Barcelona were conceded 2 goals and couldn't make a single goal in the first Leg. I think Xavi doesn't need to make another speculative experiment when he knows it is very risky, especially it is an international match and it is in the elimination phase. If he wants to try some new lineups or a new strategy, it should be in the group phase, not the elimination phase. Well, just forget the draw result in the first Leg, I think Xavi has got some lessons and he must provide a better lineup in the next Leg (2nd Leg).

Even though the result in this match is a draw, there are still many who are disappointed with their performance in this match. They had almost 90 minutes but couldn't make anything interesting there.
From the experiment of 16 kicks only 4 opportunities that really lead and even then are not too threatening.
This of course is a mistake and indeed in Leg 2 later they have to make mistakes like this more minimized

I think it will be a lot more difficult if the stadium in turkey is full. Its such a heated atmosfere that it will be a really close match.  Like you said they couldnt beat them at home how will they beat them there. Barcelona has a much bigger presure then Galatasaray in that rematch

Galatasaray tried in resisting Barcelona. Although, Barcelona dominated the game, and had 4 shot on target. But, Galatasaray's defense was solid, which Barcelona found difficult to penetrate and score any goal. Despite, getting 4 shot on target. However I think the 2nd leg will be more tough, because Barcelona will surely struggle to win. Nevertheless, if Galatasaray secure an early goal in the rematch, I think they might enable them to eliminate Barcelona. But, it don't be easy for Galatasaray to score against Barcelona.

If Xavi is aware of his mistake when the first leg vs Galatasaray, actually they should win in the next leg although they will play in Galatasaray's stadium. In the previous match, Xavi seems to underestimate Galatasaray with the player components, maybe he is overconfident because so far they can win easily from the other clubs. This is actually not good for Barcelona because Barcelona itself is still tiring and struggling to rise up again, so underestimating the opponent is really unnecessary. But in fact, Xavi seemed to do that. Moreover, some good players of Barcelona are on the bench and have too many substitutions so maybe this changed the focus of the game and made them miss crucial moments to score goals. especially this in their cage.

Galatasaray have advantage held Barcelona 0-0 on first leg because second leg will play as home but still not guarantee easy for Galatasaray because last round Barcelona most stronger when defeating Napoli as away match 4-1. But have different situation between Napoli and Galatasaray where fans as great motivation how to make dreaming as the only one Turkish Primer League team qualify to quarter final of UEFA Europa League, I am so excited if have chance watch directly to stadium with Galatasaray fans atmosphere most excited.

Of course Barcelona will be very aggressive and offensive in the future even though it plays very far in Turkey so I think Barcelona should be able to win because they will put pressure after pressure in every attack, I believe Aubameyang or Adama can start the attack well until there is a goal but they should not underestimate it is a concentration that must be perkut in the Barcelona squad.
To be honest I more believe Barcelona can go through and win with Galatasaray later.

Galatasaray has to play a defensive game as it does in other matches. To be honest, the reason why Galatasaray drew was more luck than success in defense. The goalkeeper played very well, but I think the defense could have been better, they found scoring chances almost every minute. Barcelona players played thinking that the opponent was weak and did not perform fully. It won't be like that in the next match, we'll lose if we give it that many chances

There is still a second leg that Barcelona might be able to take advantage of in the future. Judging from the Leg 1 match, I'm sure Barcelona know what strategy will be applied in Leg 2. Xavi is competent in this regard, making changes to the flow of attack effective for Xavi. I don't think Galatasaray can easily penetrate the Barcelona defence. It will be as usual the current Barcelona striker is easy to manage Xavi.

My guess is that Barcelona will win the Europa League title. Apart from Barcelona, I thought Napoli were strong. But they have already lost to Barcelona. Moreover, the Barcelona team is now very strong and stable. They are consistently performing well. There are very few consecutive teams in the Europa League like Barcelona.