LOL nope... roughs and smooths are bred together pretty often.. always have been...

You breed a rough coat..... in this case the dam is a rough:

Kelsey - Spiritwind Ain't No Angel

to a smooth coat... the sire is a smooth..

CH Apple Valley Shades Of Blue, CGC

and you get either roughs or smooths... no coat length in between..
Rough is actually recessive.. and smooth is dominat, so when you breed rough to smooth in order to get rough puppies, the smooth parent must be rough facotred (carry 1 dominat smooth gene and 1 recessive rough gene)..

Since smooth is dominat you only need one parent to pass on the smooth gene to the puppy in order for the puppy to be a smooth. Rough being recessive means in order to be a rough you have to get 1 rough gene from each parent.

If you breed rough to rough you will ONLY get roughs though...

Smooth to Smooth you can get rough and smooth puppies.. if both parents are rough factored... if one or both parents are "pure for smooth" (they carry 2 smooth genes - so no rough genes) then all puppies will be smooths..

Obviously Ben, the sire of the litter is a rough factored smooth...

LOL its after 1am... I sure hope that makes sense LOL