You change defensive systems by firing the coach who won't adjust to his players. Meatball. The defensive has bad players. No system can fix that. To make ridiculous coaching changes with Urlacher, Pisa, and Tommie hurt is the epitomy of buffoonery. what the [expletive] is a meatball A meatball is a ball of ground meat and other ingredients, such as bread or breadcrumbs, minced onion, various spices, and possibly eggs, rolled together by hand, and cooked by frying, baking, steaming, or braising in sauce.