This is the 17883rd most frequent Russian word.
устраивали
"Устраивали" means "arranged" or "organized" in English.
In this sentence, "устраивали" conveys the meaning of organizing or hosting something, specifically referring to parties.
Они устраивали вечеринки каждую неделю.
They hosted parties every week.
Here, "устраивали" implies that the changes were acceptable or satisfactory to the employees.
Недавние изменения на работе устраивали всех сотрудников.
The recent changes at work suited all the employees.
In this example, "устраивали" expresses the idea of being agreeable or fitting to both parties.