Today's guest post is from Drew Hofler of Ariba (Working Capital Solutions).The last couple of weeks have really driven home how important cash flow and access to credit is for suppliers right now. They have also served to illustrate the credit dichotomy between large, cash-rich, investment grade companies and their mid-sized & smaller suppliers in the current economic environment.On the one hand, economic indicators are beginning to show that the economy is stabilizing and that the recession may officially be over (e.g. a recent article in the WSJ reporting that GDP grew by 3.5% in the 3rd quarter). On ...