Mols pre injury was developing into a world class player, played against probably the best team in the Champions league (Bayern) and he ran them ragged he was one the most skilful players I've ever seen and one of the best finishers as well.
Prso we got at the end of his career on the decline if you like, he would have been world class if he had pace, a great player, workrate strength and skill he had it all and could finish but no pace.
Morelos has potential to be a great striker but not as good as what Prso was
and nowhere near Mols level