"Living conditions in the sheds are often squalid and high rents are charged". - A comment that is not solely confined to shed living, but can be aimed at other sections of the rented housing sector.
"steps to prevent more ‘beds in sheds’ from being created". - Cameron, Shapps and Co are among the main contributors to the problem. In any event I reckon none of the 'task force' and partners have the gumption or skill to achieve a practical solution to the very serious long running issue.