The likely cause of this is within the Coach Role, the Team Page Admin Role is not enabled.

To correct this, navigate to:
  1. Core > Security > Roles
  2. Search for the Coach Role
  3. Select Tasks on the left hand side
  4. Select Edit in the upper right
  5. Mark the checkbox next to Team Page Admin 
  6. Select Save 
User-added image
Note: You must sign out and back in for the Role changes to take effect (even if you are impersonating, you will need to log out, log back in and select to impersonate the user to test)