Managing at a group vs. initiative level

We are working on our implementation and we keep wrestling with whether it is “better” to manage efforts at a group or initiative level. Has anyone considered the pros and cons of each?

For example…
Pros for managing at a group level:

  • you get 2 levels of task management: item and subitem instead of only one with initiative: subitem.

Pros for managing at an initiative level:

  • Dashboard timelines group the work together instead of having the initiatives smattered on the widget where you have to rely on color codes to understand the work

I welcome the communities’ insights.