You really need to give more details.
- Which specific colledge did you graduate from?
- Is your work primarily technical in nature?
- What are your career goals?
675 is a decent score, but considering that there are still few months before the admission cycle kicks-in, retaking GMAT might not be a bad idea.. However, whether you decide to re-take GMAT, would depend on:
- How much were you scoring in official mocks? If you were scoring higher than 675, it might not be a bad idea to retake.
- How much did you prepare for GMAT? If you prepared for a very short time, it might not be a bad idea to prepare slightly longer and retake.
- What was your sectional split? If you feel that you under-performed in any section, it might not be a bad idea to retake.
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Ashish.