Disputing the numbers on the spot
Answering «that’s not accurate, there were two, not five» loses even when you are right: the room registers that you are arguing while a department complains. Acknowledge the subject and ask for the data so you can look at it together.
Meeting aggression with aggression
Escalating in front of witnesses manufactures a durable inter-department conflict that will outlive both of you. You convert a fixable delivery problem into a turf war, which is not fixable.
Sacrificing your team to calm things down
«You’re right, we’re underperforming, I’ll take it in hand» settles the meeting and costs you your team, who will hear the sentence within the hour. You can acknowledge a collective problem without naming culprits.
Promising a date you have not checked
Committing to a deadline under pressure, without consulting your team, guarantees a second incident — this time with a broken personal commitment, which costs far more than the original delay.