When the girls show their new coach their pyramid, said pyramid is illegal in high school cheer.
While in a bar, a man incorrectly refers to competing in cheer as a "tournament". This is incorrect. Cheerleaders attend competitions, or in some cases, exhibitions.
In the long was shot of Tacy on top of the pyramid before her fall, it is clearly a double. Tacy has black hair and in the close up shots it is tied tightly behind her in a ponytail. In the long shot, the girl on the top has blonde hair which is falling down over face.
It is never explained how the little back-water town of Sutton Grove can afford to build a multi-million dollar football stadium when the only industry in town has been shut down for years.