Congrats on going raw. Veggies aren't necessary- dogs can't break them down like us so in order for him to get benefit you would have to purée them then his body would be able to absorb the nutrients. You sound like you are on the right track with your mixture. I would start with the turkey neck wait for him to have normal poop- IDE say about a week, then I would add the beef, wait a couple more weeks until his poop is normal: I would add organs or multiple proteins for about a month. Duchess is 16 months and been on raw since 16 weeks and duke is 19 weeks and been on raw since 12 weeks. Let me know if you have any questions!