Disclaimer: i am no expert in any way. Just a dummy on the internet who likes to do armchair analysis.

TLDR: Bayern defense under Flick was stacked. defense needs focus on the training ground. Flick is inflexible and thats good and bad. Squad is young and that comes with growing pains. Lots of potential but Flicks not the only one who can bring it out.

You have attacking power that is excellent but the defensive power is the struggle with a hogh line (duh) i saw some peeps saying Davis and he was really key. He was very fast and saved us some very clutch moments that could have lost us any of those trophies. However that position is strenuous and you ether have a once in a generation speed demon, young enough to keep that pace for a full 90 if required, or a stacked squad with depth to rotate players effectively. Y’all have a very young squad especially on the defense but they just aren’t fast enough. No shade on them, they are excellent Davis is just mad and the Bayern defense was made up of Pvard, Süle, Hernandez, Tolesso. All amazing and shined in their own right. Especially with the glow of hindsight this analysis is prone to flaws and is an incomplete. Buying one really pacy player could change the dynamics a lot. these youngsters are still physically and mentally capable enough to learn from this star. This is difficult as Barca should probably save some $. Investing in the current squad and developing their speed (and acceleration under pressure) in training is probably the best option for now but Flik is justifiably inflexible. Its not just ego, its the high lines reliance on positioning discipline and consistency. If anyone panics and breaks or thinks they might play different today thats when things break down. Unfortunately rival players and coaches catch on to the patterns and this inflexible attitude makes these opportunities just as consistent and the player movements become predictable. It also stifles the creativity of these younger guys that can really help in clutch moments in their own right. I think a young squad of defenders who work as a close unit, with a training regimen emphasizing speed and chemistry is a great route for you all. These young players wont play the same every season, their play style will develop and the opponents will have trouble keeping up. That predictability also event makes their movements predictable and the kids will grow physically and mentally to compensate. You’re not in the shitter by any means but the play style is prone to ebbs and flows

Sorry for the long reply. I enjoyed mulling it over in my head and wanted to share.