Grilled Lamb Shoulder Chops with Zucchini and Corn Salad

Name: Grilled Lamb Shoulder Chops with Zucchini and Corn Salad
Ingredients: ½ cup extra-virgin olive oil , for marinade, divided; 3 garlic cloves , minced, divided; 1 teaspoon table salt , divided; ¾ teaspoon pepper , divided; 4 (8- to 12-ounce) lamb shoulder chops (blade or round bone), ¾ to 1 inch thick, trimmed; ⅛ teaspoon red pepper flakes; 2 ears corn , husks and silk removed; 1½ pounds zucchini , sliced lengthwise into ½-inch-thick planks; 2 tablespoons chopped fresh basil; 4 teaspoons lemon juice; 2 ounces feta cheese , crumbled (½ cup)