Actually, even if they ended up staying in the English Premier League I think Maddison and Tielemans still would have left the team. The only difference is that now some other players are also going to follow in their footsteps as well.
Since the death of Vichai Srivaddhanaprabha the owner of the club, Leicester has not been the same. The heir Aiyawatt Srivaddhanaprabha has not shown much commitment to the club. I am suspecting that he doesn't have a passion for football or he is not business minded. The club have sold so many key players without matching replacement and the management have failed to put out funds to buy new players. Brendan Rodgers tried his best to bring the club back to its past glory but failed and he was replaced by Dean Smith. Smith couldn't achieve much and now they have been relegated. It would have been better for King Power to sell the club last season, instead of allowing a former premier league champion to degrade to the extent of moving to EFL championship. I guess the club will sell more players and make more money and if the management is not careful they will remain in the championship for many years.
Yes, it's true, since the death of Vichai Srivaddhanaprabha, Leicester city has even fallen into financial problems, several pillars of high salaries have been removed and minimal spending this season, the results are very easy to see, even Brendan Rodgers' classmate can't do anything with makeshift players.
I see that the symbol of loyalty is in Jamy Vardi, from the start of the promotion to the championship until now, he has returned to the championship vision, he has survived.