No, but that's why managers bring through good players the ranks so that they can utilise them. That's how Klopp or Wenger manager their early success and then struggled when the talent pool dried up. That's also why Arsenal are so determined to make their academy system work in the long term.
However, when you're backed by the resources of Chelsea or Man city, the focus is utilising the transfer window to your advantage. And when you start spending money on players who won't necessarily help you, then the pressure will only increase.
