By Nathan Ridley West Ham have been accused of downing tools under manager David Moyes following their ’embarrassing’ and ‘disgraceful’ performance against Chelsea. The Irons trailed 3-0 by half-time, with goals from Cole Palmer, Conor Gallagher and Noni Madueke doing the initial damage. It didn’t get any better two minutes after the restart, as Chelsea striker Nicolas Jackson got in on the act to compound Moyes’ misery and then scored again late on to make it a rousing 5-0 win. West Ham are in talks to replace Moyes at the end of this season, despite there still being no confirmation that he’…