You may notice that the lines available within Pick'Em Pools don't always line up with the current odds at your sportsbook. The spreads used for the pools are the consensus numbers at the time the numbers are unlocked. For example, if the lines are unlocked at Wednesday at noon, the lines used are the consensus numbers at Wednesday at noon.
Once the numbers are posted, they won't change. Picks are unlocked each Wednesday for NFL and each Wednesday or Thursday for College Football.