Since When Did First Time HCs Have a Say in Finding a GM Become a Trend?

Should the coach work for the GM, or the other way around?

Also, if the GM is looking for a coach, they must have fired one. Did the previous coach fail due to his actions (is the GM even qualified to evaluate those actions?), or did the coach fail because of the roster that the GM built?

Pat Kirwan has said in the past the ideal org structure is the one where the HC has authority over all football decisions, and that can only be the case if the GM is in a support role instead of a managerial one.