I raised this issue in other threads, I do worry a bit as well.
we need much more goals from the likes of Grealish, Bernardo, Kovacic, Nunes but none of these even try much to score.
Mahrez, Gundo scored a lot and assisted a lot overall past few years.
KDB creating chances out of nothing also a big miss and scoring some clutch goals.
Foden so far also not hitting the right numbers, he has scored 1 goal in PL and started 8 out of 9 games so far.
he scored 11 last season in PL, will need to start scoring few doubles to make sure he can at least reach that number.
so we have Grealish, Kovacic, Bernardo, Nunes hardly scoring, plus Foden who isnt playing badly but just not adding the goals so far.
that puts a huge pressure on Doku, Alvarez, Haaland to come up with all the goals they would need to score and also score some more to balance the lost goals from Mhrez, Gundo, KDB.
Doku is raw and will score some but his finishing aint top yet
the way it is going so far, Doku would need 10-15 goals, Alvarez 15-20 and Haaland 35 as the others are just lacking goals.Doku imo does well getting close to 10 in 1st season, Alvarez should hit 15, Haaland as long as doesnt get injured will be close to 30 imo, not sure if above it again (PL only).
all this would be enough if Grealish would add 8 goals, Bernardo 6 goals, Kovacic 5/6, Nunes 5/6, Foden 12/15, Rodri 5/6 none of these will be any close to these imo.
Im afraid Haaland will have quite a few more games where defenders isolate him successfully with him not seeing the ball too much and we are unable to play the ball to him at all. so others need to step up and so far only Alvarez is the one stepping up and no one else...