Okay, so we have this statement from the manual about command points:
"At any time, the “Command Cost” of the troops in a Stack is compared with the
“Command points” of the leaders present in order to determine whether a penalty
applies as well as the size of the penalty. To see the details of the calculation, check
the tooltip of the command icon of your Stack."
The pop-up menu of such a leader notes the penalty runs from 5% to 35% of full combat "efficiency".
Then this for inactive leaders:
"Each turn, each Stack commanding officer makes a test based on his Strategic
Rating. If he fails (indicated by a brown envelope icon on the Stack counter and
in the Stack’s Inspection panel), the leader is deemed inactivated for the coming
planning phase and will suffer the following penalties:
• Reduced movement (-35% speed)
• Combat penalties in hostile regions (up to –35%).
• Oﬀensive posture prohibited (does not aﬀect admirals)."
I have not found a statement that one excludes the other.
I'm the 51st shade of gray. Eat, pray, Charge!