When you look at the signings in a few short time frames,where the quality of players were regularly very high:
2009-2011 we signed Tevez, Barry, Lescott, de Jong, Džeko, Yaya, DSilva, Milner, Agüero, Nasri (with a fair few who weren’t as good, of course). Who were the backbone to winning two PL titles, an FA Cup and an EFL Cup, and a few still huge in the Centurions and Fourmidables.
2015-2017 we signed De Bruyne, Sterling, Otamendi, Stones, Sané, Gündoğan, Laporte, Walker, BSilva, Ederson (with a fair few who weren’t as good, of course). Who were the backbone to the Centurions and Fourmidables seasons, and a few still huge in the Treble and four-in-a-row seasons.
It really does feel like time for a couple of years of high ambition investment drives like that to reïnvigorate the squad again.
Recently, Haaland and Gvardiol have been a good signings and Savinho for the future. Like Fernandinho, Navas and Demichelis were a good signings in 2014. However, recently we haven’t had the abundances seen between 2009-2011 or 2015-2017. But I think we need as many new big signings seen in those two time frames over the next few years: a right back, a centre half, a defensive/central midfielder, two central/attacking midfielders, a striker and a winger and be ruthless with our transfers out as the number, quality and lack of reliability of fitness of our older players are in too much of an abundance and too many of our younger or prime players are not of a high enough standard.