There are 2 ways to do this.,

Method 1 :
> 1. Click on the board's display and set the title to board.
> 2. Click on the people's display and set the title to staff.
> 3. This will do it, because the views will take title from the display.

Method 2 :

Implements hook_views_pre_render and change the title based on the board and people.