Just got back - I have to agree with the OP.
6 pts from 33 available - shocking.
God forbid if we go down, Johnson will walk.
If somehow we miraculously stay up, he ought to go.
I totally agree, sometimes it just does not work out for a new manager at a club.
If we go down Johnson should be sacked immediately, as DC will hopefully have put a clause in his contract to that effect, with no or little compensation.
If we stay up, I do still think that he should leave "by mutual consent" ......... and he could always add it to his list of achievements on his CV that he kept us up.