Sacking naglesmann can be considered a blunder. So many bavarians were very disappointed with the decision that was already taken by the management. I think that if bayern was still under naglessmann and the result will be different.
Its main problem faced by Bayern Munich right now, after sacking Julian Naglessmann from head coach and replacing by Thomas Tuchel did not have quit well performance, most disappointed result the winner trend record from Bayern Munich with 8 games stop under Thomas Tuchel and he has failed how to continues winning record. Most probably Bayern Munich losing three points and have impossible thing on second leg by winning two goals.
In Leg 2 it will be difficult for Bayern Munich to excel even though playing at home seems to have lost confidence. Thomas Tuchel management has not been fully stable or has even been considered a failure to provide more than what Nagelsmann has provided. Until now, another problem arose when Mane clashed with Sane after the match. Now the aftermath of that battle might affect the players' trust in one another. There were lots of problems facing Bayern Munich, not only internal problems but external problems which finally allowed Manchester City to play more calmly. Winning in Leg 1 with 3 - 0 points has become a heavy burden for Tuchel troops to equalize.
Bayern Munich will never beat Manchester City in the second leg. Because they will be under pressure in the second match as they lost the first match badly and the goal difference is huge. Also, Manchester City will want to play the second match with great skill and secure victory as it is a knockout stage and Champions League quarter final match.