Just for the record, I will read the quote from the McDonald commission:
To ensure that the Committee has the confidence of the recognized parties in Parliament,
—I would add, on my own personal note, “and the public”, which is a key objective of this bill—
the leaders of opposition parties should personally select members of their party....
“Making Parliament work” is what the House leader said, I believe, in her testimony. While understanding that the Prime Minister does have some prerogative, I'm sure he would consult anyway with those leaders, so I don't see how it hurts to include it formally in the bill.