I ll tell you 2 reasons for why he shouldn t make him AML:
1) he has a good AML with high white skills already that scores many goals every season
2) the guy is 19y old already with high grey skills, making the training a lot more difficult, also that would consume his resources and when he will start using him he will be 20y old already with 1 more year of the highest growing rate, and after that is going downhill...
Keep in mind he has a star already, Benitez that scores between 70-90 goals every season.