Susan, the first link that DogFoodie posted does include the duck and potato, if you read down, it shows which formulas are reviewed in that group.
I do see the chicken and vegetables on tractor supplies website, but I wonder if the last time the review was updated, that it wasn’t available, so that’s why it wasn’t included. You can submit a request for it to be reviewed under the contact us tab on the bottom of the screen.
I would have to agree with DF on the note of Diamond not making it to editor’s choice based on their poor history. recently I’ve seen complaints about the Costco line-similar to TS they have diamond manufacture their house brand. If they can go without a recall for a few more years, maybe they could make it to consideration, but for the time being, there are still too many in recent years with poor handling to most likely make the cut
