sorensen who leads the pharmaceutical manufacturer. he jumped all the way from number 233 to number 20. >> and joining us now is susan battery, an experta ceo herr of battley consultants. good morning. >> do you think they got it right? i think they got it right on one aspect which is shareholder value over time. while this is critical in terms of what investors are looking at, i do believe it's only one metric. we have many others especially in american companies we want to look at do our ceos grow jobs are they adding more broadly to innovation. they looked at one which is an easy one to measure, but it's not the only one. >> the other ones are harder to measure, though, aren't they? >> they are harder to measure but with our american companies, ceos have an obligation to investors, yes, but they also have obligations to employees and to their customers. >> who should have been on this list? >> ah. let's say who isn't on this list. warren buffett is not on this list because the study looked at ceos who have come into office from 1995 and forward. so there are -- i mean he's a clear omission right there. i think also there are a numbe