I wouldn't be too worried about West Ham in particular, but I do think the league will be muhc higher quality next season. It's important to remember that 3 of the 4 playoff teams will stay down, I think Cardiff will be one of them and will be challenging at the top again next year. There'll be 3 relegated teams who may be worth worrying about (especially Wolves IMO), the 3 League 1 teams coming up might be good too, I think Brighton and Southampton have better squads on paper than Leeds, Milwall and Norwich had when they came up and they were all challenging too. On top of that there's teams like Leicester, Ipswich, Coventry, Boro, Bristol, Burnley, etc. who will all feel (like ourselves) that next year will be 'their year'. It ain't gonna be easy that's for sure.