How can one give recommendations to a company regarding it's working capital management?

regarding receivables management, regarding inventory management, regarding cash management, regarding raising of bank finance and other sources of funds for a company

I would suppose that depends on what department of the company you are in. What role do you play? What is your standing within the company structure? If you think they are wasting or hiding funds, it would be difficult to say. You get my drift?? Like Enron?? BUT, if you have a bill of goods to sell, get your prospectus or proposal in line with your thoughts, set up an appointment with finance and see what they say. All they can do is say something like, "oh, well, we've got that, and this and that covered already. But thanks for your time." They'll give you one of their sweaty palm handshakes, but you'll leave that proposal on their desk anyway. Even if you can't get to first base with them, they will not forget what you put on paper and your ability to present the information you have. It may not show up for a time, but somewhere down the line when another issue comes up, they'll remember that 'someone' had addressed that situation a while back. Then they'll start hunting through their files to take another look...and guess who's name will be on it? Hope that helped.