I think this is a fine idea! Variety is great. In any given week the dogs get 2 or 3, sometimes even 4 different proteins.
We also feed PMR and also keep some pre-made stuff on hand for every now and then. However, I do want to point out that there has been an issue with NV and their use of denaturant in their food. The denaturant is only put in food labeled not fit for human consumption. Some people are okay with this, some aren't. I don't trust NV anymore. Another YT member (viviansnickers, I believe), emailed Primal and it was confirmed that their food does NOT contain denaturant and can be fully consumed by humans. Yay!