Who is the leader of nexus?

the members of the nexus is follwing:

1. old leader wade barrett out from nexus

2. new leader cm punk

3. david otunga

4. heath slater out from nexus

5. Justin gabriel out from nexus

6. skip shefield out from nexus

7. Darren young out from nexus

8. John Cena out from nexus

9. Micheal tarver out from nexus

10.

11.