In a bowl, whisk 3 tablespoons oil, mustard, vinaigrette and 1/2 teaspoon each salt and pepper until blended. Add chicken, turning to coat. Refrigerate, covered, 6 hours or overnight., Preheat oven to 425°. Place chicken, skin side up, on half of a greased 15x10x1-in. baking pan. Place parsnips and sweet potato in a large bowl; add shallots, caraway seeds and the remaining oil, salt and pepper and toss to combine. Arrange in a single layer on remaining half of pan., Roast chicken and vegetables 20 minutes. Stir vegetables; roast chicken and vegetables until a thermometer inserted in chicken reads 170°-175° and vegetables are tender, 15-20 minutes longer., Transfer vegetables to a bowl; toss with 2 tablespoons parsley and half of the bacon. Serve chicken with vegetables; sprinkle chicken with the remaining parsley and bacon.