I have a thought about how to encourage bigger teams to take the FA Cup & (particularly), the League Cup, more seriously. At the moment, most of them play below strength teams in the early rounds. My suggestion would be:
All teams that make the quarter-finals, or further, would only be allowed to use players that had played a minimum of 45 minutes in the competition, up to that point. Putting out a team full of reserves and just giving a star player a run-out for a few minutes before the end of a match, would be insufficient.
It might stop managers playing their shadow players in matches up to the quarters, and then sending out their top teams to grab the cup glory at the end.
On the subject of the Champions League, (I know this wouldn't happen, because of the greed of the big clubs), I think the competition should revert to just the "CHAMPIONS" and nobody else. How can a team finishing 4th in their national league be classed as champions? These days, most teams just play for 4th, instead of going for the Championship.