It was a matter of them having to buy this number of players rather than wanting to.
They had 5 key players on loan that returned to their mother clubs.
6-8 players out of contract that left the club.
So they had to replace all those + strengthen to try and stay in the PL.
Not defending them but people keep going on about them buying 20 players without understanding the story behind it
What Nottingham Forest did to win promotion, then win the league title and two successive European Cups, was astonishing.
The equivalent scenario in this era would be Nottingham Forest getting promotion from the Championship, then win the PL title and two successive Champions League titles.
Being promoted to the top division, winning that division and then winning Europe twice would be the same as being promoted to the top division, winning that division and then winning Europe twice.
You sir, are one of the finest football minds on the internet.