By Daniel Orme Newcastle’s rotten defence continues to contribute to a concerning slide down the Premier League table as Eddie Howe is left to stew over another damaging defeat. The Magpies slumped to a 4-1 reverse at the hands of Arsenal on Sunday evening – their ninth consecutive league game without a clean sheet. A Sven Botman own goal got the Gunners up and running, before Kai Havertz, Bukayo Saka and Jakub Kiwior all netted for the hosts. The sheer facts lay out the immense amount of work that Howe has to do behind the scenes. The defeat against the Gunners was already the fourth time thi…