Embiid's the only big (in the East) I'm worried about.
Horford (as we know from experience) isn't a dominate offensive force, not somebody who can go get a bucket at will. Same goes for Gasol, Ibaka, Lopez bros, etc., (and they're all 30+ on the decline). Even Siakiam, great complimentary piece, not sure if he can be a go-to bucket getter, Tobias is the same way. These guys can all be contained, and some probably won't even be averaging double figures this year. Not worried about any of these guys.
Embiid on the other hand, the C's have no answer for though.
So the way I see it, only one big in the East to really worry about. Get the best seed possible and hope to avoid that match-up come playoff time.