401k Nut

Thank you all for your input. You make some pretty good points. Hadn't thought about the "confusing the participants part". And no, this wasn't our idea. Thanks again!

We want to combine a match source and a profit sharing source that are frozen and have not been used for a long time. There is also an old ESOP source that has no employer stock in it , it's all OIA account. Is there an issue with combining that with the other too?