True.. watch some pwnage.tv they use 3 commentators the entire match.. Two usual commentators and one shoutout-guy.
Unless has not only the ability too make peeps laugh, but also to keep this up incessantly for 30-45 mins he'll need a co-host (tho this position may vary).
The hosts have to be well-teamed up as one of them controls the cam... and the other looks around in his own spectator mode... the cam operator needs to be always aware to what the co-host is talking about, and adjusting the broadcast likewise.
Not easyly done, but a blast if it works out! My hands are for hire if one needs a hand!
