I have a customer who has a small AD domain (>50 users) that has a lot of problems but all problems are a result of misconfiguration and not corruption. They are wanting to create a whole new forest and domain. My stance is to just fix the current one since it is going to be just as much work which ever option they choose ( no migration involved).
Now they have introduced a new wrinkle requesting the internal AD domain name be changed.
I have heard of nightmare with domain name changes and now I am not sure if creating a new forest isn't the best solution. They have no Exchange (O365) and no SQL that I know of.
What is your option? I want to present the best possible solution with the minimum amount of effort.