I'd like to see the team set up for Chico. Sakho probably thinks what more does he need to do to get a start. Why does Carroll deserve a start ahead of him? Carroll & Chico doesn't work.
We have a similar problem with Masuaku & Cresswell, the former has been much better going forward and he probably thinks he's done enough for a start. What to do with Arnie & Ayew our two record signings that aren't fitting in or performing. I don't envy Bilic, all I know is we have to set the team up for Hernandez, we have to get him scoring as we know he can. Give the man a chance at least. Pandering to Carroll & Sakho must be so frustrating for him.
I agree with most of this.
We need to give Hernandez a proper chance to thrive. He should be given a run in the team as our main striker and Lanzini playing off him. Hernandez is the first true goalscorer we've had in ages, so we need to use him correctly rather than messing about with his position or trying accommodate Carroll. You don't see Lukaku or Kane being asked to play a bit wider or to play off of another attacker.
On Masuaku and Cresswell, for me the situation is clear cut. Masuaku is a better player and should start. A few have questioned his defending but I can recall Cresswell having quite a few nightmare performances defensively himself. As for what they offer in attack, Masuaku is a clear winner.
Finally, on Ayew and Arnautovic, there is a big difference between them, even though it's easy to lump them together as they were both big money signings. Ayew has had over a year to prove himself and has done well only sporadically. For me, he is a useful player to bring on but should only start if better options are injured. Arnautovic has barely had a chance to impress. He messed up against Southampton, but has looked quality in bursts as well. I'd give him a run in the team as well, starting with Burnley.