I feed raw from NI. I feed raw because I don't, from what I've read, feel Tali needs the carbs from wheats, grains, rice, etc, which all kibble contain. However that is personal opinion. I think dogs can eat just about anything in truth, however if you are feeding a complete raw meal, either prepackaged frozen, or made up yourself, there seems little point in the expense of adding a complete kibble. I guess, though have no proof, that some complete kibble added to some raw meat will do little more than give a higher protein content to their meal.
As Janes says, 'if it aint broke, don't fix it'.