Def substitution rule

94LionsFan

Senior
Sep 27, 2023
246
464
63
Sorry if this has already been addressed elsewhere, but I don’t understand why the USC defense was able to have players subbing in right up to the play clock running out and we’re on the hook for a delay of game penalty. I get that they should be able to sub if we do, but it seemed like they had more than enough time to do so and were abusing the rule. Can someone explain?
 

KingLando

All-Conference
Nov 29, 2021
8,087
4,366
113
Sorry if this has already been addressed elsewhere, but I don’t understand why the USC defense was able to have players subbing in right up to the play clock running out and we’re on the hook for a delay of game penalty. I get that they should be able to sub if we do, but it seemed like they had more than enough time to do so and were abusing the rule. Can someone explain?
It will likely be addressed in the off-season but that's how it's been called. Can't make late substitutions. The second one was pushing it but the first one was on us
 
  • Like
Reactions: Bison13

94LionsFan

Senior
Sep 27, 2023
246
464
63
It will likely be addressed in the off-season but that's how it's been called. Can't make late substitutions. The second one was pushing it but the first one was on us
What is a late substitution? I just tried googling it and all I found was some guy on Reddit saying it’s at the ref’s discretion and 15 seconds left on the play clock is the cutoff. There should be a concrete definition for late substitution, shouldn’t there?
 

CDLionFL

All-Conference
Oct 25, 2021
1,772
2,708
113
The offense puts themselves in peril with this if they have the wrong personnel and they decide to run someone out there with 15-20 on the play clock. Then the C comes running in to stop the QB from calling for the snap and the defense can take their sweet time getting off the field (I think 10 seconds is the allowable time to sub). If you can't get your personnel figured out on offense, why should the defense suffer for your ineptitude?
 

KingLando

All-Conference
Nov 29, 2021
8,087
4,366
113
What is a late substitution? I just tried googling it and all I found was some guy on Reddit saying it’s at the ref’s discretion and 15 seconds left on the play clock is the cutoff. There should be a concrete definition for late substitution, shouldn’t there?
Which is why I think it will be addressed this offseason
But that's on the coaching staff would even making it close
 

Metal Mike

Junior
Oct 28, 2021
163
265
63
Another thing I did not understand was the PSU penalty for "delay of game" that gave USC a first down and allowed them to run out the clock. The replay showed PSU players moving around but I thought defensive players could move but not move toward the offensive line. Did they move toward the offensive and I missed it or what? Thanks
 

Erial_Lion

All-American
Nov 1, 2021
4,293
5,086
113
Another thing I did not understand was the PSU penalty for "delay of game" that gave USC a first down and allowed them to run out the clock. The replay showed PSU players moving around but I thought defensive players could move but not move toward the offensive line. Did they move toward the offensive and I missed it or what? Thanks
That one was the right call. Players on the defensive line can't make sudden movements to try and draw the offense to flinch. If it was one player made a sudden shift, you've got a better chance of getting away with it...but all three guys quickly shifting like that should draw a penalty on the D.
 

bbrown

Heisman
Jul 26, 2001
15,468
31,169
113
Sorry if this has already been addressed elsewhere, but I don’t understand why the USC defense was able to have players subbing in right up to the play clock running out and we’re on the hook for a delay of game penalty. I get that they should be able to sub if we do, but it seemed like they had more than enough time to do so and were abusing the rule. Can someone explain?
They crossed the line on one of them and were very close on others. They should have been flagged.
 

bbrown

Heisman
Jul 26, 2001
15,468
31,169
113
Sorry if this has already been addressed elsewhere, but I don’t understand why the USC defense was able to have players subbing in right up to the play clock running out and we’re on the hook for a delay of game penalty. I get that they should be able to sub if we do, but it seemed like they had more than enough time to do so and were abusing the rule. Can someone explain?
Another issue that would have given them first downs is just snap the ball when they jump off sides. USC did that at least 3x.
 
  • Like
Reactions: 94LionsFan

JoePaMajorCFBrecord409Ws

All-Conference
Jun 26, 2025
1,159
1,184
113
The offense puts themselves in peril with this if they have the wrong personnel and they decide to run someone out there with 15-20 on the play clock. Then the C comes running in to stop the QB from calling for the snap and the defense can take their sweet time getting off the field (I think 10 seconds is the allowable time to sub). If you can't get your personnel figured out on offense, why should the defense suffer for your ineptitude?

Nope, the OP is correct the rule states that the defensive substitutes are supposed to exit and enter the field in an expeditious manner (I believe the exact wording is "at an athletic pace" - i.e., running, not walking slowly). The Rulebook says the Defense has an opportunity to substitute after the Offense substitutes, but that is not what is being asked about here. The Rulebook ALSO states the pace that those substitutions should enter and exit the field at. The USC substitutions were both walking on and off the field - in fact, the substitute walking into the field of play didn't even start walking onto the field of play until the player leaving the field of play had slowly walked all the way to the sideline. That is against the Rules and the Official should have stepped away allowing PSU to snap the ball causing a penalty (or to few players) to USC as USC was abusing the substitution protocol specified in the Rulebook.
 
BWI

Latest

  1. 01 BWI Football Is It Time for Penn State to Make Lineup Changes After a Third Straight Loss?
  2. 02 BWI Football It's Penn State-Michigan week: Game time, spread, channel, streaming info, storylines, more
  3. 03 BWI Football First Impressions of Penn State's 31-23 loss to USC
  4. 04 BWI Penn State vs. USC Film Review: Lions trying to fix holes, can't exploit weaknesses
  5. 05 BWI Football Latest loss exposes Penn State's difficult reality: Improvement isn't enough