FSG have to be prepared to pay the big bucks to keep us on top. Every other team's scouting has caught up anyone with good underlying numbers like a Mane or Salah is already on the radar worth 60-70 million. We had an incredible run of transfer market dealings signing players well below their value but its usually once in a lifetime stuff, to remain on top we are going to need to be paying the big bucks whether that's now or the summer after e.t.c
I see what you are saying
What gets you to the top, usually isn't what keeps you at the top
I'm sure Wenger thought in 2004 that he could keep raiding the French market for cheap, top talent,as that had worked for him so far.
I'm sure those around him felt that Arsenal were better at integrating these players into their set up, until it stopped working. Arsenal's drop off didn't have much to do with their new stadium IMO, even before they moved they weren't big spenders and sold top players(petitt, anelka, overmars) and relied on what had worked for them, up until it stopped working
Hopefully we don't repeat their mistakes. Some of the things that have worked for us need to be adapted for where we are now