The phrase "old guard" refers to people who have been in a position of power or authority for a long time and are resistant to change or new ideas. They tend to stick to traditional ways and may resist innovation or progress. Full definition
So many of old guard of property management have seen this cycle before and are approaching it as they have in the past. (rentalhomeprofessionals.com)
However, it seems like banking's old guard does not put their money where their mouth is. (bitcoinist.com)
Considering this question makes me feel like a tired old guard dog that knows he is ignoring his responsibilities, but is too worn down to do anything about them. (westonaprice.org)