Don't have stats for McCombs, but will say that the more competitive the school, the better chance you'll have upon graduation of getting both a job and visa sponsorship as an international. For example, someone graduating from HBS or Wharton is going to
most likely get the job offer every time, over someone from McCombs (just as an example).
That's why it is so important to try to get into the BEST SCHOOL POSSIBLE, and to make sure you're competitive at that level by pouring all of your energy into first the GMAT and then your admissions essays.
Hope that helps!