Lately, I've been reading this nonsense that NBA Players could be really good NFL players. First of all, I don't have any doubt that there would be a good amount of basketball players that could be successful in the NFL. But only a select few of them could actually make it.
The notion that NBA players are better athletes than NFL players is laughable. You could literally take 15 players from the NFL right now to make up a NBA roster, and they would win 35-45 games. The speed, strength, agility, and size would allow them to be in the top 5 in team defense.
Just take a look at the past two NBA Draft combines. Their vertical measurements are dwarfed by those in the NFL Draft Combine... and I'm talking about the Linebackers and Defensive Linemen. Can you imagine Chauncey Billups having to guard Calvin Johnson? He wouldn't be able to get a shot off, and Johnson would dunk on him any chance he got.