Copies of the Job Advert, Job Description, Person Specification outlining the skills, qualifications and attributes required, applications received etc should still be on file even though it is four months since the appointment.
An equal opportunity employer such as Barnsley FC would be meticulous in keeping such records for at least six months in case any dispute arose involving alleged unfairness claims on behalf of other candidates.
Such documentation may have been lost/ mislaid/ shredded on confidentiality grounds and it is now time to "move on, nothing to see here".