Jen it's very unusual for a consulting firm to want to pay fees to a third party to hire someone with only 2 years experience, so to answer your question a direct approach will work best.You mention 2 years 'non MBB' - but with what type of firm? As regards approaching contacts, you can network into a firm, but as MBB have quite strangulated and formal application processes for applications I suggest this won't be appropriate for a few more years yet. Also it reflects on the sponsor internally if they recommend you and you then collapse in the selection process, and with organisations even more political than usual in the current environment, this is unlikely to motivate them.If you want to apply to MBB the the formal channel will be your best bet; you should also consider firms other posters on here would define at 'Tier 2' but which are frankly excellent nonetheless (and in the case of RB probably should be in Tier 1 here, and are in Germany) - ATK, RB, LEK, OW etc.