A Bag of Rocks

What are the EHR fail-safe points?  The points of no return, beyond which you can’t recover without exploding the budget and the  schedule?

Although there are several, my take on it is that the most important one is the planning process.  What plan do you have to rigorously evaluate the plan before you step off the EHR cliff?  Are you stepping off with a parachute or a bag of rocks?

My best – Paul