IDG Contributor Network: Should you trust those agile charts?

Most CTO's and IT leaders have received the agile message by now.  Your staff tells you about agile and this "scrum" thing from your IT department and they say agile has taken over the development world.  They then show you all these pretty graphs with sprint burn down charts, cumulative flows, velocity over time, MVP (Minimum Viable Product) burn down charts, release burn up charts, etc.Everything looks stellar, but when you start asking about how those charts are measured, it will o