As always Clark Shihan is on the money.
In my own words I would say my first movement is to get to shakaku (dead angle) using irrimi or tenkan to attack the attack. I place myself in a position that requires uke to shift to a new defensive position because he/she is vulnerable. Using that shifting momentum I break uke's balance. If that shifting momentum is coupled with the momentum of the original attract then I have more to work with.