No, it won't. He needs to be given more time to prove himself. People are excited by Costa for 40+ million, and the same applies to Berna, but want to get rid of this guy, who was brought in for half the price, at the slightest sign of trouble. Give him a full season and allow him to integrate into the team. If by the end of the 2017-2018 season you're not impressed, then we should sell him.