Tesla projected that it would produce 5K Model 3s per week by the end of 2017. In all of Q3 they produced 260! That kind of shortfall is clearly not part of any plan, unless it's one drawn up by GM and Ford. Source: http://autoweek.com/article/green-cars/tesla-model-3-product...
They also moved this timetable up a year due to high demand, meaning more CapEx required. A few months won't scare people in the know, and thinking this would work without a hitch would have been naive anyway.
http://www.leftlanenews.com/ford-may-be-facing-f-150-delays-...
https://jalopnik.com/chevy-bolt-ordering-delayed-by-three-mo...