Backup Exec 2012 Agents 2010

Hi,

Working on upgrading our backup Exec servers from 2010 to 2012 at 3 different sites.  I was able to complete the first site media server and agents but it took all day.  What I am wondering is, Can I update the Media serve to 2012 and then take my time updating each agent server?  Will my jobs still run if the agent is 2010 and media server 2012?

This is not something that I plan to make long term, I just need a way to keep up on this project while completing other tasks.

Thank you