Having missed the nomination for Best Director by the Academy might have been the best thing to ever happen to Ben Affleck and his Argo. Since 1948, only six times didn't the Oscar winner match the DGA's victor. Steven Spielberg for The Color Purple (1985) and Ron Howard for Appolo 13 (1995), like Ben, didn't even get a nomination. The others were Anthony Harvey with A Lion in the Winter (1968), Francis Ford Coppola with The Godfather (1972), Ang Lee with Crouching Tiger, Hidden Dragon (2000) and Rob Marshall with Chicago (2002).
The other winners here.