I find that unless you've played football, it's one of those sports where it can be kind of hard to recognize great play at the line and other positions that aren't featured as heavily as the QB/RB/WR's. The truth is though that at that level there is always 100x more stuff going on than you could possibly imagine; how far someone is leaning forward, if their right foot is slightly ahead of their left, where their center of gravity is relative to their normal stance, what moves were tried in previous situations and how will that affect what they try now given what I think I/we am/are showing? When I played sports at a high level, I always regarded my ability to think quickly and break down situations further than my competition in the moment as to what made me effective. There's a fair amount of slower freak athletes in the NFL that don't need to win the mental battles as much because they are just so much better physically and nothing can counter-act that, but there's also a ton of really smart guys studying their ass off for that slight edge and beating the bigger, stronger, faster with it.
Then there's guys who do both like JJ Watt