Including all player positions, the average NFL career is four seasons.
How long is there career? After that point,well ya,were is Jeff Reid? Go PiTT
8 to 11 years
"There is a little bit of a misrepresentation or a misunderstanding on that. Frequently, it is said that the average career is about 3.5 years. In fact, if a player makes an opening day roster, his career is very close to six years…If you are a first-round draft choice, the average career is close to nine years. That 3.5-year average is really a misrepresentation. What it adds is a lot of players who don't make an NFL roster and it brings down the average."
wel a career cluster an nfl player could have is mabey the player is traded to a differeant team and does not get paid enough money.
as many as you like their is no limit the average player however will have an 8 to 14 year career with exceptions of course