Take context from the input text and decide on the accurate relationship between 'John Cryan' and 'Chief Executive Officer' from the options provided.
Options: position held, publisher, member of, industry

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