Step $1$: Create a high$-$level Process Flow across the two companies

Create your list of tasks or process steps that you think need to be done to take Fleetwings

and FBN from start to finish. Start might mean, $$We don$$t know if we do this at all. Finish might mean, $$We$$ve got a good, working system for identity management and access control in place for both companies combined together as one organization.$($Feel free to adjust those or suggest your own start and finish states.$)$