I'm not exactly sure but what i did was explain 4 steps, link them to SPC, then for impact on the internal environment, i wrote how the corporate culture and policies would have to be adjusted to compensate for the employees who were previously competitors, and find a middle ground where they are both satisfied.
Then i said the operations of SPC would also be affected cause they moved both sets of workers to a single factory, so the layout would have to be altered so it wasn't over crowded, and something about how they started to produce new products as a result of the merge, and therefore needed new machinery and what not.
Something like that i wrote, not sure if its correct but i hope i can get something for it.
