Do different arcs/episodes of Dragon Ball Super anime have different directors?

Answer is yes !

Dragon Ball Super  is a Japanese manga series and anime television series. The series is a sequel to the original Dragon Ball manga, with its overall plot outline written by creator Akira Toriyama. 

The manga is illustrated by Toyotarou, with story and editing by Toriyama, and began serialization in Shueisha's shōnen manga magazine V Jump in June 2015. 

The anime was produced by Toei Animation, with individual episodes written by different screenwriters, and aired on Fuji TV from July 2015 to March 2018.

Soure: wikipedia