Yeah. Until they leave for another job and literally no one else in the company can understand the ad-hoc process unintentionally developed over five years of

Yeah. Until they leave for another job and literally no one else in the company can understand the ad-hoc process unintentionally developed over five years of "let's just add this here". Which is not to say that whatever replaces it is guaranteed to be better, but it will at least have a good start by using the right tools for the job.