Giroud works better in this system, not sure why Higuain is given chances when he clearly isn't adapted yet. Higuain should start all the games while Gonzalo can come on as an impact sub. However it won't happen, Gonzalo will play all the league game and Giroud will play all the Europa League games. Sarri just doesn't change it is always straight forward. If he gave Odoi, Emerson and Ruben a chance earlier in the season i am certain we would have better results this season.