The challenge system is super interesting
Common sense says teams should be more willing to challenge later in games or in leverage situations. You don't want to blow your two chances early and then not have a challenge in a leverage spot.
Teams will probably red light and green light certain players
Obvious missed calls may not be noticed by every player - some have better eyes than others!
I can't wait to see someone like Jazz blow two challenges in one PA early in a game, and end up in a headline