GMAT 680: retake? Target: 1-year MBA

Hi, I would be grateful if you could advise me whether it is worth for me to retake GMAT, I feel that I could push my score to 700-720. My job is pretty time-consuming, thus I would like to avoid retaking GMAT. Short summary of my profile: Male from Eastern Europe, 24 yrs. 1st GMAT attempt: Total - ...