It's Chelsea's pattern to be signing many players every season and most of these young lads won't get first team opportunities because of the number of players they've in a particular position. They'll end up being shipped out on loans and some of them will never return back to Chelsea. An example is Kevin De Bruyne. He was signed by Chelsea, only had 3 appearances and was loaned out to Wolfsburg because of limited opportunities. Wolfsburg later made the deal permanent and City clinched him from Wolfsburg and the rest is history.
This new trend of buying more players than they need and giving them long contracts is Todd Boehly’s doing, it is not Chelsea’s pattern. During Roman Abramovich time, Chelsea didn’t make these kind of signings in the transfer window. It’s the change of ownership that has caused the club to reckless and irrational in their transfer dealings.
Different leadership means different ways of thinking, especially at the beginning of the season Todd seemed to want to show that he was indeed capable with the finances he had, so he acted as he pleased without caring whether it had a good impact or not for Chelsea.
But for now it seems a little limited even though they are still quite loyal in bringing in players, but unlike when Todd first arrived, they seem to be holding back for now because they are aware that many players but have no impact whatsoever, that is not a good thing.
Currently they are even starting to try to auction some players or even loan them out and I think that is still a very good option because until now there are many Chelsea players but they don't seem very useful apart from the rotation which is still maintained but in terms of performance they don't show anything good. Fortunately, their coach is now better at providing quality so he is aware of which players should be prioritized and which players should be discarded.