Continuity mistake: In the game after Billy Bob passes out, the defense stops the opposing team and lance runs out onto the field. Billy Bob is already in the huddle. The next cut shows Coach Kilmer telling Billy Bob, who is on the bench taking oxygen, that he "needs him for one more series." (00:29:05)
Continuity mistake: When Billy Bob is knocked out on the field and his team-mates crowd around him if you look closely someone has the #4 on,but that can't be because Mox hasn't arrived yet and never had his helmet on.
Continuity mistake: During the scene where Lance and Darcey are having sex on the drier, when Billy Bob comes in to throw up they show her in one scene with her top down and in the very next with her top up but she hasn't changed positions.
Continuity mistake: In the last game against Gilroy, on the 16 yard pass to Tweeter, before Mox snaps the ball, you see the clock in the background counting down, 7:03, 7:02....etc. After the pass is completed, when Mox is coming to the line calling the next play, the clock in the background shows the clock at 6:55, 6:54...etc. Two pass plays later he hits Tweeter again for the touchdown and after all the celebrating, it shows the scoreboard with the time of 7:07 again. (01:33:02)
Continuity mistake: When Darcey reaches in the cabinet to get the Sundea glasses she clearly has on flip flops. After going into the kitchen to put on her "whipped cream outfit" she comes out and in the reflection of the gun case where Mox is looking, if you look down at her shoes as she is coming out, she has on tennis shoes - you see her laces from the shoes flopping around as she walks.
Continuity mistake: In the first "Oopdy Oop" play it has Tweeder being tackled. It cuts and Tweeder is falling down again in the next shot. (01:32:10)
Continuity mistake: Toward the end, when Mox is about to lead the revolt against the coach, he completely loses his accent. Its especially noticeable when he is persuading one of the players not to take a painkilling injection.
Continuity mistake: When Tweeder is showing Mox the endzone dance, in the background you can see Lance getting shot up with steroids. When Mox looks into the room he's getting shot up again. (00:10:10)
Continuity mistake: When Jon Moxon is sitting on the bench during the Bingville game, reading the novel inside the playbook, the player standing in front of him (wearing a white baseball cap) is named Symonds, and is wearing the number 68. During the halftime of the Gilroy game, right after Moxon rallys the team with his speech in the locker room, Symonds is now wearing the number 9 (he jumps right in front of Moxon). When the players return to the field after the locker room rally to start the second half against Gilroy, during the opening kickoff, Symonds is again wearing the number 68.
Continuity mistake: In the first game Lance completes a pass to Tweeder down near the goal line (the ref waves his hands above his head which means completed pass and runs to mark the spot). The next play Lance passes the ball straight out into the flat to the running back, but it's at the 30 yard line. (00:10:55)
Continuity mistake: In the first game when Billy Bob says, "We're punching it in for 6," the quarterback (to BB's left - BB plays right guard) is wearing number 5. Lance is number 7. (00:11:45)
Continuity mistake: When Billy Bob is drunk and shooting his trophies, one of the trophies he throws changes after it hits the ground.
Continuity mistake: When Billy Bob is going to talk to Lance at the beginning, he walks from a point about 5 feet in front of the truck instead of around the front of the truck. (00:04:50)
Continuity mistake: During the game, when Lance gets injured, Mox has to throw the ball to stop the clock. You can hear the announcer say "the clock's still running, the clock's still running" Later in the film where Mox has to stop the clock again, you hear the same announcer say the exact same thing but in a complete sentence, meaning they used a portion of the sentence for earlier in the film.
Continuity mistake: During the last game when Lance is coaching, in one scene he has the headset around his neck, then on his ears and then no headset, and the on his neck and it continues this way for quite a few scenes.
Continuity mistake: When Tweeter drives up to Mox at the convenience store, he says the girls in the car are naked, but if you look closely you can see that the girl in the front seat has a pair of jeans on.
Continuity mistake: On Moxon's first play they start on their 25 yard line (huddled on the 15 and went 10 yards when the huddle broke). The announcer says he throws a 40 yard pass, which would put the catch on the 35 yard line. When Tweeder caught it he only got about five yards running, so when it couldn't have been on the 16, where Tweeder got up, or like the scoreboard said a second later. (00:32:10)
Continuity mistake: When Tweeder comes in the car he pulls in almost perpendicular to the sidewalk. Moxon stands next to the car when he gives the girl his jacket. When the car leaves, it's no longer perpendicular to the sidewalk and Moxon is standing about 5 feet from it. (00:40:45)
Answer: There's no rule in any sport, at least none that I could find, that requires a team to have, or listen to, a coach. Obviously in most cases it's a good idea, but if the coach were poor and/or working against the interests of the team, the players wouldn't be breaking any rules by simply ignoring them and listening to someone else.