Salah performance has declined slightly this season while Gakpo and Nunez have not been able to contribute well and Diaz's long injury has made it even more difficult for their attacking line.
But next season it looks like they are going to make things more interesting by bringing in some midfielders and releasing some older players which will hopefully be better for them.
Mac Allister and Szoboszlai could be the new hope for their current midfield but of course there has to be an improvement from some of their attacking players in terms of performance for next season to be better than this season.
This is slightly wrong; why do i say so? Liverpool generally had a poor and inconsistent season; but their attackers did not underperform, instead Liverpool struggled in midfield and Defense and Klopp has been wise to work on those weakness in the summer transfer window.
Salah ended the season with 46 goal contributions, Darwin Núñez ended the season with 19 goal contributions, Gakpo has 10 goal contributions (joined in january). Klopp has done the needful with the Liverpool midfield, next season; the squad will flourish