Re: Do you think campaign managers enrol their alts in their own campaigns?
Nevertheless, participate in the poll 
I can say the manager employs their Alt in the campaign they manage a percentage of 1-5%.I once found a case like that.
Proof:
https://bitcointalk.org/index.php?topic=5187379.msg52550131#msg52550131
https://bitcointalk.org/index.php?topic=5187379.msg52554800#msg52554800
But not all managers are greedy employing their Alt, only certain.