Ironically I don't also think we are that far off either (sounds like a annual thing to say at Spurs)
But I think there is a mix in that WE as fans want all players, till they are here then they are quickly deemed not enough, where as I also think we look at what others have done and over estimate the abilities of what players others have, just because. BUT IMO looking at today, our back 5 is very good, Danso and Drags is very good par for any bench, Bentancur looked dreamy at times and Sarr was MOTM and is quicky progressing into come player.
I think with the youth and others on the fringe, Frank will work wonders, I don't doubt that is why he is here, but he also has better tolls available than many fans will admit IMO.
THAT SAID, I think we need to back him, easy for me to say, but give him 120m in two/three areas and I think we give this league a massive shock at just how much talent there is here or could be with backing.