Do we have to?

Continuing coverage of Theresa Collington's session on "Making the Most of Your Digital Newsroom"
...
 Theresa says that although in theory everybody in a newspaper staff ought to be linking to all the social media, in reality it's best if each person links to the site he enjoys. And the big two are Twitter and Facebook.

   If you like Twitter but you can't stand Facebook, do the Twitter.
She says that in general
• Sports and weather guys like Twitter.
• News anchors like Facebook.
• News reporters like Twitter.
• Features writers like Facebook.
"We've got to make the leap at an executive level and give people a break," she says.
   Pinterest and Instagram let the audience interact with you but won't make them look at your news. Still, all of us ought to figure out how to at least set up an account, in case market research suddenly inspires a mandate that you need to have 50 followers on Pinterest tomorrow.

Do such things happen at other newspapers?