No!
4-5 months looking for a job is not so long in the larger scheme of things, especially nowadays. What about your CPA - did you start studying/taking them or waiting till after MBA?
I have friends who graduated before you, studying/studied for CPA and are still looking for jobs...I guess part of it is because of the economy, flexibility and having an "edge".
I have a friend in 3rd year law school who must have sent out hundreds if not thousands (maybe a thousand) of resumes in her efforts to obtain a job, or even internships. She inspires me because she has been doing this for such a long time and is so persistent. Each time she gets a "no" or no answer, she doesn't let it get her down, but keeps trying.
See what you can do about improving your image to potential employers, being more flexible, having an "edge" etc. and keep at it! Don't let it get you down!
....Passed....
FAR - April '11
AUD - May '11
REG - July '11
BEC - November '11