Ha! Not really concerned, he's been here 6 months, yeah it'd be ice if he was a mainstay in the midfield and putting in performances that dominate other sides but frequently that doesn't happen for a combination of reasons - some of them obvious, new league, new team (moreso with the way Klopp wants his new players to learn about the way team plays), some not so much - others intangible (new environment, club etc). Not even convinced he's been as bad as is made out, he's had some good games, some not so good, been injured, eased in and out of the side. The high expectations (mine too) at the beginning of the season probably don't help either. Personally don't get concerned after 6 months, it's not the same for every player.