I'm involved in a merger between two competing organisations. We're in the same market segment, but our software solutions differentiate themselves slightly differently.The stakeholders are obviously interested in seeing an integrated software solution that provides the strengths of the two existing solutions in one service.Obviously, there are technical challenges with this: the two existing solutions use extremely different tech stacks, where neither of which is appropriate for "plugging in" the other one. The technical people involved also want to take the opportunity to fix some long-standing scalability problems when it seems like they have to restructure the top-level architecture anyway.But I'm more concerned with organisational problems. I feel like most of these integrations easily turn out wrong or inferior to either original service.Do you have experience with this type of work? What did you learn? What would you suggest?