The Seattle Seahawks have hired Baltimore Ravens defensive coordinator Mike Macdonald as their new head coach. Macdonald, at 36, becomes the NFL's youngest head coach. He aims to bring a championship back to Seattle. Macdonald has had success with the Ravens' defense, leading them to top rankings in various categories. He will replace Seahawks legend Pete Carroll. The team hopes to improve their defense, which has struggled in recent years despite having promising young players.