Haaland has literally zero goals in the air. Just because he is bigger doesn‘t mean he is better in the air. Ilicic is 192cm and Never scored a Header in his life.Haaland is better in the air than Martinez. Disagree?
Martinez could be a Aguero replacement but is he someone who could play alone at the top? I doubt that. At least not now. Would he suit our game more ? Definitely. Haaland played in teams who counterattack all the time.