system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do skills possessed by college football stars often not translate to the NFL?

Not talking about busts, but stars (even Heisman winners) being drafted low or not at all. Sorry in advance, I'm Canadian.
gpt
There are typically much-greater talent discrepancies in college football amongst teams than in the NFL. A highly-ranked college team may have three players on the field that are good enough to reach the NFL, which means that eight of those players aren't NFL-caliber. The most talented players will be able to perform well, even if they're not performing at their absolute best, because of this gap in talent.

Once these players get to the NFL, the talent gap is gone. These guys go from facing a team with three NFL-ready players to facing teams with entire rosters good enough to play in the NFL. They can no longer simply rely on natural talent at that point. Their success will depend on both their talent and their ability to execute in high-pressure situations with pinpoint accuracy against the best in the world.

A great example of this is Heisman winner and 2-time national champion quarterback Tim Tebow. He was successful at the college level because he was good at both running and passing. He was bigger and stronger than most of the players he faced, making him tough to take down when he ran, and he threw with enough accuracy to make opponents pay.

However, once he got to the NFL, he was no longer the bigger than most of his opponents, and his passing accuracy (which was decent for the college game) was poor compared to other NFL-caliber quarterbacks.