Roasted Chicken Potpie With Spring Vegetables without sprinkles

1 (3 lb) whole chickens 12 medium red potatoes, trimmed around center 12 asparagus spears , trimmed, halved crosswise 3 carrots , cut into sticks olive oil[...]

2 1/2 lbs chicken thighs (or whole legs) kosher salt 4 cups low sodium chicken broth 3 medium carrots , peeled and cut into 1/2-inch dice (about 1 cup) 12[...]