2. Chris Johnson (2008)
An explosive running back out of East Carolina, Chris Johnson was expected to be a second- or third-round pick, likely to be used as a backup running back and return specialist, but that was before the NFL Combine.
Johnson put up some impressive numbers in Indy. A 35-inch vertical leap and a 10-foot, 10-inch broad jump raised some eyebrows, but only one number truly mattered at the combine for Johnson, 4.24. Johnson’s record 40 time made him an intriguing enough prospect that the Tennessee Titans decided to roll the dice and select the speedster with the 24th overall pick. Johnson has at least one thing to feel good about in 2015: his record still stands.
The Titans' gamble certainly paid off as Johnson rushed for over 1,000 yards in all six of his years with the team, averaging 4.6 yards per carry. In his record-breaking 2009 season, Johnson was named the NFL's offensive player of the year while rushing for 2,006 yards and setting a single-season record with 2,509 yards from scrimmage.