Consolidate Groups and Teams

There is a lot of confusion between Teams and Groups. We need to consolidate the 2 concepts and better figure out how they relate to each other.

Context 1: 

I do think there needs to be more work into this feature for it to be as useful as a group however. It would have probably been less work to start with a group and then expand on that?

Atlassian Team field can't but Groups can be:

• Synced with IDP
• Controlled by admin for user membership
• Used to include multiple groups (not for assignment)
• Used in automation rules
• Used in project roles
• Used in project permissions
• Used in workflow

Groups can't but Atlassian Team field:

• Has a nice team page
• Can display members in the mouseover (handy)
• Can be used for resource forecasting in Advanced Roadmaps

I am looking forward to this feature devloping to a point where I can just use it to replace the assignment structures I've had to put in place, it just feels like it's a while off.

Context 2: 

It would be must to integrate teams with user groups. We must have option to add users in team using user groups. Please confirm is it planned and coming.