Interesting timing! I just saw this article:
http://experiencelife.com/article/rethinking-pet-food/ and passed it on to the co-worker who got the English Springer Spaniel. At her last check-up the vet advised that they needed to watch her weight.
When they told the vet what they're feeding, the vet was ok with it.
That's when I advised her that they get squat when it comes to nutritional education, and what they get comes from the PFI.
Hopefully, the article will help drive that message home a bit.