I wouldn't look down on Kimbrel as your setup man if he winds up closing for the Braves. Their closer situation is up in the air right now. For all we know, it could be Venters or it could be by committee. Hell, on my team Sale could wind up closing for the White Sox.
I look at it this way. If a guy can be a closer, he can certainly be a setup man. But it doesn't always work the other way. We've seen that with Ryan Madson.