This is simply about Tesla's inexperience as a manufacturer of complex products, and failure to backfill that inexperience with professional management. You do not stop production of an existing line of products that will be supplanted by a new line until the replacement product is fully sorted, all the supply chain issues are fully lined up and in hand (warehoused), any backlog is dealt with, any design issues are solved and settled into the production/supply parameters. Only then do you push the go button, with a very clear cut-over process, which for major auto manufacturers entails a couple weeks of downtime. Logistics has never been a strong point for Tesla, but there is no excuse for this given the availability of capital and its ability to hire talent who know about doing such things. Further, these models are to be built on existing lines, do not require standing up effective new factories as was the case for the 3 and Y - heads should be rolling - this is what companies have boards for - accountability and responsibility. Teething was okay in 2021, 2013, and maybe during the 3 production hell. Not now. The capital markets have been flooding this company with financial resources for several years. There are no excuses.