~Snip
The regeneration in Madrid squad is done impressively, they don't seem to have a transitional phase remembering they keep winning trophies while doing it. They will surely be lost their leadership in the midfield if Luka Modric chooses to retire either. The La Decima personnel will be gone one by one. I just didn't expect Kroos would retire before Modric remembering Modric is quite older than him.
The young players in Madrid squad are not prospects anymore, they have become the backbone of the team while the senior players are still there. This is the best pattern of regeneration in a big club I have ever seen. Luka Modric is giving full hand on Modric to decide his own future as a respect for his contributions and loyalty. He deserves it all due to his legacy at the club as one of the biggest legend.
Regeneration is needed at all clubs and this is the most important part of the club's long-term plans. Kroos, Modric, Nacho, Carvajal, Thibaut Courtois and all the other old players will in turn leave Real Madrid either to continue their careers at other clubs or choose to retire like Kroos. This will happen and it will not be inevitable, but Real Madrid has prepared itself and regenerated it from an early age.
Losing several main players in one season could possibly affect the team's performance. Almost all teams have experienced that impact basically, but because Real Madrid still has a lot of quality midfielders it is still possible for them to remain stable if they are not disturbed by injuries.