When Smash is walking over to Coach Taylor to tell him he doesn't want to work out anymore, Coach Taylor's sunglasses strap is hanging on his neck and it can be seen that he is wearing them. When the camera goes to Coach Taylor's face, he is not wearing the sunglasses and they are hanging around his neck.
When Coach Taylor is waiting for Smash outside of the Alamo Freeze you can see the "en" from the Dairy Queen sign on the side of the building.