Even if you've practiced running up-downs? You know, drop and bear walk on signal, pop up on next signal, etc.?
Maybe if you practiced running them with three guys going down on top of you as soon as you crab.
If we see guys on the ground, we try to shove defenders backward over them. The pile is your friend. And we don't care if it's our guy or their guy who is down. It looks like we're bowling and picking up a spare.