The first part of your post is a worrying statistic,and in the past we know how Saints would have folded in these circumstances. The current squad however seem to have a greater mental toughness about them than I can remember for years so providing that holds firm we should be alright.
As for Sven, well I recall we were the 'final straw' for one previous England manager some years ago so perhaps we can repeat this, although I don't have any particular dislike of Sven.
Oh, and our next league match is at home to 'Wally with the brolly', so perhaps we can see that overrated tw^t under more pressure.
(But lets be careful what we wish for here, as we don't want to be responsible for either Leicester or Forest bringing Martin O'Neill into this division too soon).