What's clear is that Leverkusen won't spend all the profits they earned from the sales of Florian Wirtz and Jeremie Frimpong on new players. Management can get around the squad overhaul plan by recruiting cheaper players, and we know that Ten Hag is known for his penchant for signing players in every transfer window. Malik Tillman will be slated as Florian Wirtz replacement, and hopefully he won't disappoint. Ten Hag will likely try to bring in one or two more players before the transfer window closes.
When I see the arrivals in Bayer Leverkusen, until now all of them are under 25 years and only a goalkeeper was aged 32.
As I mentioned before Bayer Leverkusen and Borussia Dortmund in particular are teams that act like a farm. They elevate young players and when they become good ones, they simply sell them without hesitation and without thinking twice about the team future. Luckily for them that Bundesliga isn't intense like English Premier League or La Liga, teams there can push teams that got weak to the edge of the relegation zone. This happened to Manchester United and Tottenham Hotspur the past season for example!