When Ahsoka and Master Sinube are walking down the hall toward Nack Movers' apartment, Ahsoka's sash keeps clipping through the bottom of her skirt.
Master Sinube's lesson for Ahsoka is to have patience and move slowly so that you can always see the path ahead clearly. There are multiple points in the story where, had he simply moved faster, the situation could have been resolved more quickly and safely. Had they arrived at Nack Movers' apartment just a bit earlier, they may have been in time to save his life and avoid the dangerous chase through the busy streets. Had they gotten to the train station just seconds earlier, Cassie wouldn't have had time to find the tracker that Sinube put on Ione and he and Ahsoka could have apprehended them before Cassie blew out the train window and took the Twi'lek family hostage.
When Cassie is threatening the Twi'lek mother and child with the lightsaber, Ahsoka should have been able to easily use the Force to pull it from Cassie's hand. Cassie even says she won't accept a prisoner exchange because once they're alone Ahsoka might use the Force on her, yet Ahsoka does not use the Force when the opportunity presents itself.