Where are they now: Dan and DaveSports Illustrated catches up with Olympic decathletes Dan O'Brien and Dave Johnson to hear how an ad campaign for sneakers changed their lives.SI Staff|Share on FacebookShare on XAdd us on Sports Illustrated catches up with Olympic decathletes Dan O'Brien and Dave Johnson to hear how an ad campaign for sneakers changed their lives.Published Jul 2, 2014 | Modified Jul 2, 2014SI STAFFShare on FacebookShare on XHome/Olympics