Both try to replace popular participation with populism.
The question for the BBC is how best to replace popular presenters who succumb to riches on offer elsewhere.
Although both replaced popular managers, Pochettino has largely been accepted at Southampton since succeeding Nigel Adkins, helped by victories over Manchester City, Liverpool and now Chelsea, not to mention the lower initial expectations at a club hovering just above the bottom three.
He says they are not trying to replace popular consumer voice assistants like the Amazon Echo or Google Home.
The regional authorities replaced popular mayoral elections in the city with the appointment of a city manager in order to assure their political control in the future.
It's one thing to add all of these features, but it's another to do it with enough depth that they would replace popular alternatives.
From the get-go, Facebook notes that it isn't trying to replace popular HTTP and proxy servers like Apache or nginx with Proxygen.
The company will develop new features in this area to try and replace popular calendar services, such as Google Calendar or Microsoft Exchange — it's going to be a long and winding road.
During last year's electoral contest, the club endorsed Mirkarimi to replace popular outgoing sheriff Michael Hennessey.
