It's been said elsewhere but losing Ricardo has been such a massive blow. We have no one who can play that inverted right back role and it's probably the most integral to the formation. Without him, Winks is forced to be playmaker on his own, while Hamza doesn't know whether he's coming or going in that position. I am hopeful that with Ricardo and Ndidi back after the international break, performances will pick up.
It's also worth noting that while we have blown a sizeable lead at the top, in any other normal season we'd still be most likely be several points clear of third, if not second too.