For the former Tennessee linebacker that would mean he's either chasing down a running back in the clear or getting forced into coverage deep down the field - neither of which are ideal situations.
And considering Reveiz has often been considered too slow or too small for the game, the idea of getting measured solely by a stopwatch isn't the most appealing, either. But like it or not, those 40 yards are one of the most trusted tools for the scouts flocking to UT's Indoor Practice Facility to break down Reveiz and 12 more former Vols at pro day this morning in a handful of different drills.
"There are a lot of positions in football, so for that run, it may be important for one position and for another position it's not as important," Reveiz said during training sessions in Nashville in January. "As a linebacker, I think a drill that is really important is the Pro Agility, talking about your quickness.
"Quite honestly, as a linebacker, you're in trouble if you're running 40 yards every play, really even 40 yards straight in one game."
Times in the 40 or the amount of bench reps or the height of a vertical jump might not be the truest measure of a football player, but it's a valuable part of the equation for NFL teams in the evaluation process.
And with only Luke Stocker and Denarius Moore having participated in the NFL combine a couple weeks ago, the on-campus showcase is a critical part of the process for the rest of the Vols trying to make it to the next level.
Even for a projected second-round pick like Stocker the workouts could be a prime opportunity to solidify his status for the scouts, though he's made clear on several occasions he doesn't stress about specifics with his workouts.
"I'm the type of guy, I don't like to put a number on anything," Stocker said. "I feel like you limit yourself to that number. I'm not a guy that says, 'I want to go down and hit a 30 on the bench press.' Then if you hit 30, you might be able to hit 32 - but in your mind, you're thinking, 'OK, I'm good.'
"I just don't even want to keep count, just run as fast as you can, bench as hard as you can and at the end of the day, you've done your best. That's all you can do."
After that it's up to the scouts to maybe do a bit more than that, like some film study on what Reveiz can do with his speed - or, perhaps, lack thereof.
"It does have its importance, but you can't get discouraged by it because you've got to let the pads do the talking, too," he said. "There is a difference from running the 40 and then getting in pads and having to move around, but it's definitely something NFL scouts and teams are going to look for, so you've got to train hard for it."