Oh my god. I just ruined my Sunday morning and gave myself a headache trying to understand via Wikipedia the difference between FA and EFL, EFL Cup and EFL Trophy and FA Cup, etc etc etc.
and I didn't sleep well last night, so even reading English is difficult. Finally I decided I'm just going to ignore English football for a full year
The prize money for EFL Cup is insane: "League Cup winners receive £100,000 prize money (awarded by the Football League) with the runners-up receiving £50,000"
You can't buy any reasonable good player from that money.