The judge chosen to hold the public inquiry has already declared that plans to limit the scope of it to looking at the causes of the fire starting and spreading.

That would suggest that issues about who was responsible for permitting the use of dangerous materials in building work, both in Grenfell Tower and right across England won't be addressed, nor whose responsibility it was that clear breaches of safety rules were widely permitted, or the extent to which warnings by tenants have been ignored.
Any number of other issues - how can it be that people with severe mobility problems have been housed in flats many stories above ground.

What's needed is a rapid inquiry focussing on Grenfell Tower in all its aspects, both at the time of the fire, and in the years building up to it, and a wider inquiry into the wider issues, which may take longer, but shouldn't be allowed to stretch on for ever like so many.

And the responsibility for setting it up and giving it its brief shouldn't be left to this minority government on its own. It should be a joint effort involving the opposition as well.