Frankly having been that manager, the demo shows what you’ve done. It didn’t lay out how to get the whole project there. The documents are hard specifically be

Frankly having been that manager, the demo shows what you’ve done. It didn’t lay out how to get the whole project there. The documents are hard specifically because not you have to consider alternatives, or the feasibility of executing. What security concerns did I cover? How much time do I need to spend convincing team y to add this feature? The demo is always the easy 50%, and never the hard parts that cause you to spend two years building alignment and executing.