Teams.
The Flight Deck Party and their skills will slowly fade away, and will have to be re-learnt again slowly by new young people, the slow hard way.
Don't think a lot of people on here twig on to what a difficult thing it is to do, to coordinate and run up a carrier, escorts, suppliers and its Air Group, fully and to the standard the country took for granted.
I certainly know that the politicians don't know.
Invincible had, what 14 or 15 FA2 and GR7 + helicopter support and that was hard work for a highly experienced air team to handle, in the Spring of 1999, from the NAG to the Kosova thing? All of that era of hands on operators (worth their weight) are nearly all gone, God bless them.
And that's before we even get on to the bridge teams, ops room teams.