Ange's predecessors also had much better teams at their disposal and failed to show up and give us anything in those big games.
Isn't this slightly circular thinking? How good a player is tends to be based on consistently high performances. In a non-performant team, those players look worse.
Our midfield in 2018/19 was arguably weaker than our current options. Our first choice back four was probably a similar level, but probably less depth than now.
Where we are clearly weaker is in the main striker department.
It's very hard to tell how good our current squad is, because many of them are playing below the levels they set themseves at Brighton, Juve, Bournemouth etc.