Sione Vaki's 'old-school' preparation during pre-draft process wowed Lions RB coach

When it comes to the NFL Draft, a sure thing doesn't exist. Going beyond the 520 yards and five touchdowns Vaki racked up with just 42 carries and 11 receptions last season, Lions running backs and assistant head coach Scottie Montgomery explained how the prospect wowed the team during the pre-draft process, between a meeting at the combine and an official visit to the team's facility a month later.