The point is there is no one good enough to join us if we sell one of them to replace him. We could sell neymar or suarez for a huge amount but there is no guarantee that the replacements will outdo neymar or suarez.
But yeah our wage bill is too high to operate currently.
It doesn't work like that: you need a player for a player, or to get a better or an equal player.
One more time, Masch is maybe the best Cdm in the world.
Yet, in Barca, at least 3 guys play better on that position (Busi, Rakitic and Roberto).
Zlatan was maybe the best Cf in the world, yet some other players who are 70-80% of him, could be a better fit here.
So, you don't need a player who is as good as Neymar or Suarez.
About a LW, even Pedro currently wouldn't be a downgrade from Neymar.
Neymar as an individual is a better player. A current Barca with Pedro would be better, or in the worst case, equally as poor as Neymar's Barca.
Further, we had Ronaldo the Brasilian in 1997 here.
He scored 34 goals in 37 matches.
We were 2nd, behind Real Mardid.
Top scorers in La liga were: Ronaldo first, and the 2nd best guy scored 25 goals.
Luis enrique scored 17 goals, all other guys in Barca 13 or less.
So, back then it seemed: omg, if we'll sell Ronaldo, we will be 50% weaker than today.
Well, let's see what happened:
= in the next year, we bought different players in attackers Rivaldo and Sonny Anderson, and sold the best player R9.
Rivaldo scored "only" 19 (top La liga scorer Vieri scored 24).
Lucho scored 18.
Barca won a title without Ronaldo R9, with 9 points advantage on top.
A year after that we won another title with +11 points advantage.
Rivaldo scored 24, Kluivert only 15, Cocu 12 and Lucho 11.
So, we traded an individual player who was scoring like crazy and bought different, weaker players.
But a team started to play differently and more players started to score goals and we didn't rely on an individual effort anymore.
So, in our current case, we shouldn't use that logic: but every player is a downgrade from Neymar.
Again, every player is a downgrade from a Cdm Mascherano or Cf Zlatan, and yet we played way better with different or inferior players.