I think Klopp only made a small rotation in the line up that was deployed when Liverpool played against Crystal Palace, Liverpool's squad was still dominated by core players. It is impossible for Klopp to gamble in an important match because Liverpool also really needs a win to top the standings. The defeat against Crystal Palace was due to Liverpool not being able to take advantage of the opportunity to score a goal, after Eberechi Eze put Crystal Palace ahead in the 15th minute, Liverpool still had plenty of time to make the score equal again, but not a single opportunity was successfully converted into a goal.
Behind by three goals in the first leg and this is a tough challenge for Liverpool in the second leg, apart from having to try to break into Atalanta's goal four times to make a comeback and at the same time get a ticket to the semifinals, Liverpool will also be under pressure because the match will be played at Atalanta headquarters. Atalanta will not let Liverpool take away the ticket to the semifinals which is almost theirs, the results of the first leg will make Atalanta players even more motivated to knock Liverpool out of EUL.
The European contests too is there. He's been able to put the team in the spotlight which they need to excel. The players he's worked with are definitely improving in their abilities too. Just like Pep in City, Klopp is been a savior to Liverpool and they'd definitely have to get to some greater heights before he exits the team soon. His exit from the team would definitely have some impacts in the team's performance ahead either positively or negatively. It's only best to avoid the negative effects.
He's been able to set up the right team with every needed criteria in place. But still, it's not a determinant that any bad change can't happen in a twinkle of an eye. The Liverpool squad just have to work together to stay in shape and hopefully the replacement won't be a mistake to the team. The team still proves to be competitive in their ability next season. We'd just watch how it'll be manned up and see the results they do their best to achieve. There are still world class players in the team and so they have no standing reason to flop no matter the condition they'll find themselves.
I'm admitting that crystal palace are a very promising club to some reasonable extent. Season's before now, they've proved to be competitive and tough on the pitch too. It was a convincing game from them against Liverpool last weekend and really it's expected that they stay put on acting and performing at a high pace in the remaining games left this season.