You certainly don't need my advice with what you have already...
But as far as Eukanuba goes, both my breeder and my vet recommended that garbage and of course Rocky loved it. Why wouldn't he? I love McDonald's, but that doesn't mean it's good for me.
I immediately switched foods, and noticed a HUGE difference. If you think he has a nice coat now, wait till you get him on some 5 or 6 star food. You will also notice a huge improvement during your daily walks/runs as well.
I currently feed Canidae (only because of Rocky's age - 8 months) but hands down, once he hits one year of age he will be switched over to Orijen. I have exposed him a little bit already to Orijen, and he gets so excited while eating it, you would think I threw a steak on the floor.
Good luck, keep up the exercise.