Demir Ege doesn't have a single accurate pass. The goal he scored was just luck because it deflected off an opponent. He's not good enough to play in Beşiktaş's midfield. With 10 central midfielders available, it's a big mistake to keep playing him. Paulista is struggling as a right defender. A transfer is needed there.
Arroyo wasn't bad in the first half, but he needs to play more and gain experience. Rashica isn't performing on the left wing. Abraham didn't receive many passes. Rafa Silva wasn't very visible on the field. Overall, we can talk about tactical mistakes. Ole Gunnar Solskjær didn't prepare well.
Beşiktaş will advance to the next round, but the first half can't be used as an excuse. If we also take into account the second half of the first match, the team played a 90 minutes that was unworthy of Beşiktaş. There are many issues that need to be resolved.