From the Tool Tip :
Staffer (Level: 1)
+2 Command Point per ability level, to the stack, even if Not in commad.
This ability applies to all elements of the Stack.
In the Grand Campaing, Murat starts over command points. From the Corps pop-up detail
Murat without Henry Clark With the Staffer Leader Trait
Required Command: 26
Provided Command: 25
On the first turn I add Henry Clark With the Staffer Leader ability . On the second turn Murat Corps has the exact same Required Command and Provided Command as shown below.
Murat with Henry Clark With the Staffer Leader Trait
Required Command: 26
Provided Command: 25
Is the tool tip wrong or is the game not working as indicated.