What's most important for any set-piece coach, though, is that the players buy into their methods. That certainly seems to be the case at Arsenal. Jover has already built strong relationships. Chambers' celebration against Leeds showed his popularity. "Something that you found so easy, you just pick your darts up, after about 10 minutes you start finding your range. The arm starts getting oiled up and you're thinking 'this is lovely'. "He looks a shadow of his former self," Lloyd said onThe Darts Show Podcast"Only Glen can tell you what was going on. A set-piece coach typically works on technique as well as on the tactical side - "the two things are tied together," says Buttgereit - and Jover has helped develop a new set-piece taker in Smith Rowe, who didn't take a single corner last season, but has taken eight in Arsenal's last three Premier League games.