That was my understanding, too (and the OP's last response makes my suggestion of a pledgemaster-president-big-little meeting a pretty big issue).

In my chapter, the prez nor NM (pledgemaster) chair could not have littles unless there were not enough other initiated members for all the littles.

the pledge never asked to be reassigned, he just said okay when the pledgemaster decided to give him a new big.

the current pledgemaster had a little last semester, and the pm absolutely hated him (he was not a great big). i have not seen them speak one word this entire semester.

as pledgemaster this semester, he decided to give his big, the current chapter president, another little, when there were many more younger brothers who have not had littles yet.

the situation is pretty much resolved, i've spoken to most of my brothers and they agree with me. the current pledgemaster is on a power trip, and it is a damn shame that he would wish to leave his mark on this fraternity in such a negative manner. Not having a little this semester does not bother me so much as how irresponsibly and disrespectfully (to the rest of the fraternity) the pledgemaster used his power in his position. Hopefully we will be able to learn from our mistakes in the future.

Thank you all very much for your thoughts and input.

Wow. I'm not going to put too fine a point on it, but your prez and pledgemaster certainly sound like a pair of cheese dicks. Thank heaven your elections are coming up soon.