Hiya Jane,A rule of thumb is that a typical consultant within an "up and out" environment would be expected to last about 2-3 years. In companies that don't have an "up or out" policy, the turnover rates would be lower - not sure by how much, but would expect 6 or 7 years possibly to be typical?Also, bear in mind how the "pyramid" model means that people have to move on in order to progress their careers... (not every analyst will become a senior consultant, and not ever senior consultant will become a partner, and so on... simply because there are fewer SCs than there are analysts and fewer partners than there are SCs etc)Hope that helps a little?