If that is your reasoning, then why didn't Haaland fail given the pressure he was under to succeed? When a player leaves their comfort zone, they often perform below average. Timo Wermer and Romelu Lukaku are two examples of players who tend to perform below average and who can only perform well to specific teams.
Nkuku is physically and mentally capable of succeeding.
Although I haven't seen much of him this season in the Premier League, he's a good player and a good move for Chelsea.
Well Haaland was having a tough time at start wasn't he? One-two games where he really struggled to get to the ball but his team and coach continued to put faith in him and kept feeding him the chances. I have been saying this- everyone needs time and chances to prove themselves and also need to handle the pressure. Haaland is a beast and the reason why he didn't failed because he met the expectations when his teammates and his coach (most importantly) continued to give him chances.
See I didn't exactly wanted to pin down on pressure as the only reason but there maybe lot of factors behind and yeah comfort zone is also one of those factors.
Now let's take Ronaldo's transfer for example. It was a mega transfer just because of kind of player Ronaldo is. He had great initial season meeting the expectations but now he is not. Is he playing out of his comfort zone now? In this case I would say it's pressure to meet those expectations for which he was bought for. Now he is struggling to start and get good a chance to prove.
There are many who have become world class player after getting adapted to new roles. Even when they were give a new role in a different line say shifting from mid to attack line. It's a gamble really sometimes it pays off great and sometimes doesn't. It all depends on what vision manager has for the player.
I will still say Nkunku will be under lot of pressure but if he is given the chances and manager has the right vision or tactical role for him which makes him adjust into the team right away or even takes time to adjust but guarantees that he will do in future then no doubt that he will become a crucial player for the team.
Everybody thinks that players from Germany will play bad because of Timo Werner but i dont think that will be the problem with Nkunku. Leizpig has amazing players and i think that only timo werner didnt find his way in the premier league. Premier league is different from the rest but you can take Haalands example that you can play easily in the epl
I don't have such opinion that just because Werner is bad means every German player is bad or a young potential player is a bad player. They have very good players with immense talent. Werner had some qualities but not the perfect package for Chelsea.
It's not always the case like Haaland actually where you get a team perfect for you.
In addition to easy-to-understand strategies, support from team mate is the main key to the success of players on a team. I don't think Werner's situation is the same as Haaland's at Manchester City, Haaland is a player whose main job is to score goals where I've seen him receiving more passes than dribbling.
I also don't think all German players are bad, I remember Ballack was a good player with Chelsea back in 2006-2010. I also don't think all German players are bad, I remember Ballack was a good player with Chelsea back in the 2006-2010 era. Werner may not be very good as a striker who is expected to score a lot of goals for Chelsea, but the support of his teammates will be very decisive that statistic. Now that he is in Leipzig, he continues his career there.
Yes Haaland is getting a lot of support from his teammates and his manager. He is the right poacher that City wanted and the the right team to grow that Haaland wanted. With Werner, I have said earlier that the guy has tremendous pace but he lacks the finishing and passing. While the passing thing might not be that important but finishing should be the thing for which he was brought in when Chelsea already had strikers like Tammy Abraham and Batshuayi who have the pace and good finishers of the ball as well.