Players turn out better in the game than in irl all the time. Remember Kristiansan and Kallstrom on CM 03/04? I'm not gonna loose any sleep over it dude :P
How about Gabriel Barbosa? With some tutoring he's turned into a Wonderkid with 'The Next Ronaldo' on my Arsenal save. Or if you want to save money for the next window Fabio Quagliarella can be loaned for the season and is a reasonable back-up to Giroud.