I do something similar to this in the crockpot. I chop up carrots, celery, and onion and place the vegetables in the bottom of the crockpot. Then I rub the chicken with dry herbs (thyme, rosemary, etc. change it up as you like). Place the chicken on top of the vegetables. Then I place citrus fruit wedges (lemon, orange, lime) under the skin of the chicken and in the cavity of the chicken. I simmer this for several hours. Once the chicken is done I take it out of the crockpot and discard the citrus fruit wedges. We eat what we want to that night. The meat is always moist and delicious.
After eating I pull the remaining meat from the bones and save it for a later use. Then I place the bones back in the crockpot and let the juices continue to simmer for another hour or two for a great chicken stock that can be used later. I usually discard the vegetables once the stock is done. But I suppose you might be able to use them for something.