What? I'm sorry but Zlatan was brilliant because he had insane talent to go with his attitude.
You could have the strongest will in the world, it won't change a thing if the technical basics are simply not there. Being a professional footballer requires a little more than just desire, Bolt is 32 and compared to even the most average footballer his reading of the game, basic technical ability etc will be extremely lacking. That takes years and years of training and experience to hone, usually from a very young age.
Bolt became the worlds best sprinter because he has insane physical traits which are perfectly suited to sprinting. Sure, he also worked incredibly hard, but it's like saying Michael Phelps would be a world class centre back just because he's the worlds best swimmer.