In my opinion yes. It's got all the ingredients: MVP caliber talent in Davis; top 3 PG in Kyrie; 3 elite defenders in AD, Horford and Brown; 3 good facilitators in Hayward, Kyrie and Horford (plus AD is coming off his best passing season); and 3-4 good shooters from 3.
Plus, it has a clearly defined pecking order on offence. If Brad got that group to mesh it would be a title contender