Letter of Recs - From Professors or Supervisors?

<p>I'm currently an undergrad and eventually plan on going to B-school after a couple years of work experience. My question is, do B-schools require letters of recommendation from your undergrad professors, or can they all be from career supervisors. I ask this because if the answer is the former, then I would need to make sure I get a letter before I graduate. If not, then I won't have to worry about it until I actually have a job.</p>

<p>I am curious about this question as well. I know for sure 1 of them has to be a current work supervisor to vouch for your work experience but Im not sure about the second letter of rec.</p>