Can I assign an Aero to more than one person?

An Aero can only be assigned to one person at a time. Here are some ways to allow more than one person to work on the same task:

• Create an Aero Group and then create three related Aeros, assigned to the three different people. The benefit of this is that all time will be tracked under the on the project and three people can be working on it at the same time, but it is more complicated to set up. 
• Create one Aero, assigned to one person, and then either defer it back and forth between people, or people can grab the Aero and start working on it as needed. (How can I start another user's Aero?) This is the simplest to set up, but only one person can work on the Aero at a time.
• Create three identical Aeros (How to copy an Aero (clone)), assigned to three different people. This allows three different people to be working on the task at the same time but doesn't give a very good view of the overall status of the project.