Refer to the input text as context and select the correct relationship between 'John Cryan' and 'Chief Executive Officer' from the available options.
Options: publisher, position held, industry, member of

Below are some of the issues Credit Suisse Chief Executive Officer Tidjane Thiam, Deutsche Bank’s Co-CEO John Cryan and John McFarlane, the chairman and interim CEO at Barclays, must grapple with.
position held