WordPress handles a lot of this for you automatically.
For your Leadership page that could be the archive template for your Employee custom post type – http://codex.wordpress.org/Template_Hierarchy#Custom_Post_Type_Archive_display
You can say whether or not a custom post type has an archive, and what the URL should be when register the custom post type: http://codex.wordpress.org/Post_Types#URLs_of_Namespaced_Custom_Post_Types_Identifiers
So if you set your custom post type slug to “employees” and go to http://www.example.com/employees it will use the archive template automatically.
Otherwise you could create a shortcode that does a get_posts on your employee custom post type and display it anywhere.
For your individual employee pages these are automatically created as well, and use the template: http://codex.wordpress.org/Template_Hierarchy#Single_Post_display
So in your single employee template you’ll just need to call get_field or the_field as normal and it will output the values for that specific employee. No need to create a new page and assign employees, as once you’ve created a new employee post it will automatically use this page.
