For Darren McFadden owners last season, McFadden was nothing but a big giant headache. Despite missing the last 10 games of the year with a Lisfranc injury, McFadden was frequently listed as questionable week in and week out, agonizing his owners. They never knew if he would play until the last minute, which handcuffed owners.
To be quite honest, I don't think I would ever draft McFadden, unless he fell to me way down in the draft. Through four seasons, he's played 13 games twice, 12 games once and only seven last season. He's an injury waiting to happen, and although according to CBS Sports he's looked great so far this offseason, it just isn't worth the risk. You can't go into the season with one of your top running backs almost guaranteed to get injured; it's a recipe for fantasy disaster.
One final note on McFadden. Despite his immense talents, he's only rushed for 2627 yards and 16 touchdowns in his four-year career. At this point, he's more fanfare than fantasy star, although due to his skills set when healthy, he's (rightfully) regarded as being in the latter category.
If you choose to take McFadden high, just know you're rolling the dice.