Random or NOT list of names (not repeating till all names used). Need HELP a.s.a.p.!!!

Can you help me with this?: confused:

I am having some issues with Randomly Select Names No Repeats Until the list is exhausted. cannot repeat down or across!
I have 4 columns of names, some names (like Sue) are in all columns (P,M,SO,ST) GIVEN THE TASK THAT THEY KNOW HOW TO DO.
for a given month or MORE, each week i must list individuals from the 4 columns that can do the below tasks.
PRESIDENT (P) PRESIDENT (P) MICS (M) MICS (M) SOUND (SO) STAGE (ST)

Right now I'm using a drop-down list & relying on human error & the countif function NOT to repeat. There has to be an easier way to select from a given column without repeating the names until they have all be used, & also ensuring that the tasks assigned do not repeat the names across (for the given week).

I downloaded (MRAND) but not sure how to set it up with more than 1 factor.
https://app.box.com/s/dpb6fsyqft4ku44bft8ui903fmfraq66