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 as a preferred sourceSports Illustrated catches up with Olympic decathletes Dan O'Brien and Dave Johnson to hear how an ad campaign for sneakers changed their lives.Add us as a preferred source on GoogleFollowLoading recommendations... Please wait while we load personalized content recommendationsPublished Jul 2, 2014 | Modified Jul 2, 2014SI STAFFShare on FacebookShare on XHome/Olympics