Many parliamentary systems allow MPs (members of parliament) to be ministers at the same time.
But assuming that ministers cannot serve in parliamentary committees simultaneously, this creates a number problem where the governing party may not have enough people to serve in committees (because too many MPs are already ministers).
I'm curious how do they overcome this problem? Examples:
Increase the number of MPs?
Require non-ministerial MPs of governing party to accept more workload?
Decrease the size of parliamentary committee?
It might be helpful to look at relatively small legislatures as they would run into this problem more often.