Well I have seen several cases where this has occured and it has been quite successful. I guess my point is to focus on developing a broad array of skills. That's certainly possible, but my point was it would be unlikely you'll be able to transition to an IB from say, KPMG or something of the like, while it wouldn't be as difficult to transition from Mckinsey, Bain, et al. I have experience in both fields and would generally agree, and also point out that in terms of the travel element, most consultants will have to do a lot of travel until (and even if) they hit the junior partner level (on the McKinsey scale) while most IB is centered in and around NYC (if you're discussing serious firms). I'd say the first couple years of working in either profession will be fairly intense, I would potentially agree that there may be a more intense lifestyle tradeoff.