Approval for Succession Plan

Hello Gurus,

I understand that in "Succession Planning" module they don't have an approval process while creating a Succession Plan. 

Can any help me with a solution how to achieve this approval process. 

Business Scenario: 

Whenever a Manager creates a Succession Plan for an employee it should go for an approval to his Manager and upon approval should go to HR for records.

I would appreciate your help and support in this.

Thanks.