It's pretty straight-forward. The higher up you are on the tree, the less grunt work you do. In terms of career progression in a big 4:1. ConsultantLittle real responsibility. Likely to be working on internal projects, contributing to proposals, creating lots of Powerpoint decks (which will later be thrown out by the partner who reviews it, since most of what you create is likely to be shite).2. Senior ConsultantSimilar to consultant, except that you will now be wasting clients' money instead of your own. Kidding aside, these are the guys who do most of the heavy lifting on client projects. Lots of Powerpoint / Excel work at this level, some participation in meetings / workshops but mostly as a note-taker.3. ManagerMore autonomy over day-to-day work, but still likely to have a fair element of churning out documents. You will be almost entirely client-facing at this level, probably with responsibility for delivering significant parts of a project.4. Senior Manager / DirectorAt this level, there is an increased focus on selling, and you are likely to be leading big projects. Lots of time spent in meetings. Focus is more on reviewing the work of SCs / Ms than of producing work yourself.5. PartnerYou lose the ability to read and write, dropping in periodically to create havoc in projects to justify your profit-share.