Ready for my buyers ....or not?

I have buyers who are purchasing a home which was listed for sale five months ago.  With a potentially quick closing, the contract having been signed about one month ago, you would think that the sellers would have been preparing to move or at the very least getting things cleaned out, boxed and ready fora minimum of six months - no, not these sellers!  Presentation at the house has been poor, at best, and everywhere one looks there is "clutter."  Luckily my buyers have been able to see through this and can imagine what it will look like once the sellers' belongings are out, the house has been freshly painted and their own furniture is in situ.  Not every buyer has such vision though and the sellers seem to have no clue about how important it is to really prepare a home to put its "best foot forward" when it comes to marketing and showing.  I know their agent, who is highly respected, and he has come up against a brick wall whenever he has suggested when and how things should be done.  Listing and selling a house is all about pricing and presentation especially when buyers looking online decide whether or not they are going to physically preview the home based on the photographs they see.  There is an argument here for stagers to accompany buyers to homes like these before the contract is even written!