Do Rosters get reset after preseaon?

Hey,
I am a HQ league noob, and so is my clan lol. I am just wondering if the rosters get reset after the preseason? Thanks to anyone who answers

Rosters???? whoever is on it stays...now do standings reset yes back to 0 points

lol srry...rosters?...trying to type fast in 7th period multimedia so i dont get caught...my bad lol