Hi Josh,
I would not want to send a blanket email to the whole team because I want the alert to go only to team members who were assigned leads for a given campaign.
For example, there may have been a conference in which leads were assigned to only 10 Sales team members out of a full group of 30. In that instance, the communication would be irrelevant for 20 members of the team.
It seems though, since as you said Marketo thinks in terms of leads, there's not really a way to automate this. Any other insight is appreciated.