Okay, I'll bite. All of you highly experienced captains are convinced that no-one could do it better, makes me feel sad for the rest.....
And yet. Back to that BA111 experience at Cranebank. If you are the low time PPL alone in the dark cockpit, and manage to call MAYDAY without turning the autopilot off by mistake, why indeed cannot someone talk you down to an autoland at LHR or the equivalent?
As I recall, all I had to do was set the flaps, reduce the throttle settings, and steer it on the ground. Which has to be better than no help at all, if both your professionals become U/S......however unlikely.