Bit of perspective needed:
All PL teams are inconsistent this season. Imagine Liverpool fans after the Fulham game, or Man C fans after WBA. Games twice a week mean constant rotation which leads to a more disjointed team, and players not playing at peak ability. 2015-16 was a freak in this respect in the number of players used and the lack of injuries.
Everton are a decent team with a top manager.
Still in the top 4.
Still missing some big players.