I really don't know what the solution is but the team is badly underachieving. The players' mental strength is something that I continue to question and they certainly fucked up tonight in ways that the must make the manager very frustrated. However, I think he got his team shape, tactics and selection wrong. Some of that comes with hindsight but not entirely: we debated on this thread earlier in week not playing both KDB and Sterling and he should have been brave enough to do that; with hindsight, I would suggest he could have gone further and had both Sterling and Navas start the game, with all of Yaya, Dinho and Delph also starting, sitting back and flooding the midfield. He won't do that though.
Based on results, I have passed the tipping point and it is time for him to go but, practically speaking, sacking him now does not look very viable.