Scout team. Dummy squad.
Yes, an NFL player needs a lot of practice to play.
An NFL player has to practice because he gets payed to be on an team. Not only that if an player doesn't practice his postion on the team can be taken by another player. Also if the player doesn't practice he's not that different from an free agent.
Cowboys practice squad how much do each player
One full NFL season, unless a team signs them.
it all depends on the injury, because the injury determines what happens to the player.
They run drills on whatever positions they play.
Only if one player is hurt or released.
A NFL player's practice schedule will change from team to team. All teams do however have a training camp for the players during the summer months.
If you're in college, Practice Constantly. Never know, you might get drafted.