Strategic Business Principles We Should Apply to Missions and Ministries

Some feel that business and ministry are entirely separate and never the two should cross.  Jesus said 'I must be about my Father's business'. Just because it is ministry, doesn't mean we should abandon logic or accountability and common sense. We should always seek to get value for money in our endeavors. Of course we should always be open for God to overrule, but that doesn't excuse dealing with a slack hand. 'The hand of the diligent shall prosper'.  How do we do this?