When writing about your career, it is important to inspire the reader by showing that your goals are ambitious, but not so ambitious that they are implausible. You should strive to find a middle ground between goals that are easily achievable and those that are naïve or entirely fantastic. So, for example, stating that in the short term, you want to return to your existing position at your firm would be an example of an unambitious and thus unwise approach; stating that in the short term, you want to become CEO of the New York Yankees would be shooting unreasonably high and is therefore unrealistic.
Generally, with respect to short-term goals, you should be able to identify a reasonably precise position that you would expect to take upon graduating from your MBA program. (If you intend to start your own firm, you should have a clear understanding of what the firm will be, the direction you will take and how you will steward it to achieve its short-term goals.) With respect to the long term, we suggest that candidates pick a goal that is derived from an existing career path or a logical transition from it and one that represents an ideal of sorts. Essentially, we recommend that you consider writing about goals that would be within your grasp if everything went according to your plans.