While we blast the chicken initially for a nice color it also helps to reduce the heat and cook at a lower temperature. Basting the chicken a few times during cooking helps keep the chicken moist (but don't open the oven door too often as the oven temperature reduces every time you open it). Loosely tent the chicken after roasting. This will keep the moisture in the chicken. Do not cut the chicken for at least 15 minutes after you take it out of the oven - so the juices stay in keeping the chicken moist.