One of the key concerns with Rattler off his college tape was his ability to play with urgency (mentally and physically) to combat the rush. These practices don’t really give evaluators a chance to answer that question, so I don’t think Rattler dramatically improved his draft grade this week, but he made a solid impression.
What is player movement tracking technology and how do NFL teams use it? - The Athletic
Interested in a player's top speed? What about how quickly he gets to 10 mph in his first 5 yards? Teams get all sorts of data.