I'm really interested to know, what are YOUR top 1) 2) 3) things you wish Sales people knew and understood about procurement and the procurement process?

What are the three key points in your experience that you wish the sales teams of suppliers in general knew or understood about the procurement process? What three things would you like them to know which would make either yours, theirs or both of your lives easier? This is your opportunity to change a sales training programme for the better!