I initially thought that if I did fed kibble this would probably be my 1st choice to try - the only downfall is that the kibble is pretty big IMO for a small yorkie. Zoey is only 4.5 lbs and has a small mouth, so I'd have to cut it (PIA though). I also found this online and was a bit troubled by it "Sharp bone shards found in Orijen food." Granted this was over 2 years ago and it seems there has not been any incidents since, but it was a bit disappointing to hear. You can read about it here if you care to.
Orijen concern(please read)!!.