One change may take weeks to sign off on - it's not just one person giving their OK, it's many layers of project/contract managers giving their OK. Each of whom

One change may take weeks to sign off on - it's not just one person giving their OK, it's many layers of project/contract managers giving their OK. Each of whom has to account for their time and each of whom has to be paid for that same time. There are processes that have to be followed, no matter how ridiculous they are, because they exist.