Brian Hartzer, Westpac chief executive Westpac chief executive Brian Hartzer said in a memo sent to the bank's staff on Friday that Disney is "one of the world's most loved brands and their Next Generation Experience program has set a new benchmark for how great service can be delivered in a digitally-enabled world".
In the context of the input sentence, determine the relationship between 'Brian Hartzer' and 'Westpac'.
Options: publisher, employer, distributed by, headquarters location