The NFL draft prospects for any given player can change more rapidly than the stock market. One day you're up, the next day you're down. And a lot of that has to do with off-field issues.
The players listed in this article are all talented; in fact, were it not for the character flaws that each is perceived to have, they would all be high first-round picks.
Instead, issues like drugs, work ethic and the like all combine to make or break a player's prospects. After all, there is an abundance of talent in college, and often it is the makeup of a player that determines his success in the NFL.
That said, players do have the opportunity to talk about past failures and make a positive impression on front office executives. What they say can often be as important as how high they jump or how fast they run.
You can measure things like height but you can't measure heart, desire and character. Yet the latter is extremely important, especially to early round candidates.
In the later rounds, teams are far more apt to take risks, But in the first two rounds, teams can't afford to make a mistake.
So let's take a look at the best prospects whose draft stock may be influenced more by their off-field problems than their on-field ability.