I mean, sure? I guess. No need to be dramatic. They all know what's at stake and I think they know how diehard the fans are. Heupel will know what he wants to say and how he wants to say it.
Now that said, there was some old story, I can't remember which coach, but some famous coach who came in before a big game for his team, and sat and waited on the bench. The whole team was sitting there watching the clock count down, and the coach said nothing. Clock kept counting. Players started to fidget. Coach said nothing. The clock kept counting. Nothing but silence. Clock kept counting. No one wanted to go up and interrupt the coach or speak up (I know it was some famous coach, just can't remember who). So everyone sat. The clock kept counting.
Finally, after a half hour of sitting and waiting, the clock hit 00:00. The coach stood up, looked at everyone in the locker room, and said in a normal voice - "let's go kick their asses." The players erupted like a volcano and went out and did just that.
The funny thing is, I think, after the fact, I want to say the coach said later on he had nodded off waiting for the game to start, which is why he was quiet the whole time.
I wish I could remember who it was. Anyway.