Not a Chelsea fan but I believe it’s too early to start calling Mudryk a flop from his stint at Shaktar Donetsk he was arguably their best player there. He needs time to adjust to the Premier League which is the toughest league in the world.
There was no player in Chelsea last season who performed close to their level/standard, they were all really bad and thus it is somewhat unfair to single one player out as a flop, but rather the entire team flopped. Mudryk has time to shine, he is just 22 years of age and is yet to have one full season in Chelsea. If Pochettino decides that the Ukrainian is good enough to play in his team, he'll give him the opportunity next season, and we'd then see how good he performs and only at the end of next season can we now pass appraisal on him.
Last season was really bad for Chelsea there is no one to blame because since the transfer of ownership things have been very chaotic. Now Todd Boehly has understood the situation and he has taken the right steps by recruiting Pochettino as manager. Pochettino arrived inheriting the young squad that Potter had recruited. In fact, these young players have a lot of potential and maybe this season they will release all their potential to bring Chelsea back to being able to compete at the top flight. I saw that the young Blues had no mentality and the two previous managers didn't see the needs of every player. So for that Pochettino must be observant to see what his players need, he must come to instill the mentality and develop the right strategy so that the players can easily understand it. I'm sure that even if they can't get into the top four next season, at least the Blues will compete in 5-6 positions in the standings.