Utilize the input text as a context reference, choose the right relationship between 'Brian Hartzer' and 'Westpac' from the options.
Options: product/material produced, distributed by, owner of, employer

There have been some excellent recent examples of this including the following appointments: Brian Hartzer at Westpac Banking Corp, Jon Sutton at Bank of Queensland, Ryan Stokes at Seven Group Holdings, Peter Tonagh at News Corp Australia and Chris Smith at CSL.
employer