His story has been well documented to this point. Malcolm Delaney signed with the Atlanta Hawks in 2016 on a 2 year, $5 million contract. This after playing five seasons overseas following a collegiate career at Virginia Tech.
His final season in Euroleague saw him average over 16 pts/game while shooting over 40% beyond the arc. He was a career 40% three-point shooter overseas while averaging five 3PA per game. His shots beyond the arc accounted for 52% of his total shots during his 2015-2016 season in Europe (all numbers via Basketball Reference).
These numbers are impractical, because not one of them translated to his first season with the Atlanta Hawks.