The promo system has changed in the last year. So to some extent this info is outdated.
And while obviously culture and incentives play a role I think the statement that this is the major reason for Google killing products is largely false.
New grads aren't making any big decisions about products.
And Google has many steady seniors because of the high tenure rate. In fact the one of the major complaints is that it is too steady , too bureaucratic and too slow.
