How do I compare my teams' performances ?

How do I compare my teams' performances ?

Hello, 

I can't find a way to compare my teams' performances on Zoho. My company is divided into 4 teams (according to geographical criterias like postal codes). Each team is made of a team leader and several Business Developers.

I'd like to create the following dashboards : 
- The number of accounts attributed to each team (based on Territories ?)
- The number of opportunities by team ? 
- The stages of the opportunities by team
- How many leads have been converted, by team

As Territories is not supported by leads, it seems to be a bit complicated to create these dashboards, any piece of advice or information would help a lot. 

Thank you !