Avery Davenport
Avery is in a great mood. She's excited to play, and somehow even more excited to play in the dynamic of a random team. She's really looking forward to the new team dynamics and the atmosphere more than playing, though she loves Quidditch as well.
If no one else does - and even if someone does, to be honest - Avery steps up to be "captain" of the impromptu team almost immediately. She has no issue stepping up and since she has been captain of her team for over a year, she's ready to take on the responsibility. As a captain, of course, Avery is kind and encouraging more than anything else. She has some good strategies to give in the incredibly short amount of time they have, but mostly she just makes sure to give each person a compliment on their play-style, having observed so many of them play herself.