BBQ Salmon Cobb Salad

Name: BBQ Salmon Cobb Salad
Ingredients: Two 6-ounce salmon fillets; Kosher salt and freshly ground black pepper; 1/4 cup barbecue sauce, homemade or your favorite store-bought; 2 ears corn; 2 tablespoons olive oil; 3 cups watercress; 3 cups chopped romaine; 1 cup grape tomatoes, sliced in half; 1 cup croutons, store-bought or homemade; 5 slices cooked bacon, chopped; 2 hard-boiled eggs, chopped; 1 avocado, cut into cubes; Ranch Dressing, recipe follows; 1 cup mayonnaise; 1/2 cup plain yogurt; 1/4 cup buttermilk; 2 tablespoons minced fresh chives; 2 tablespoons minced fresh flat-leaf parsley; 1/4 teaspoon garlic powder; 1/4 teaspoon kosher salt; 1/4 teaspoon freshly ground black pepper