Generally, I am not a fan of leaving assets with a former employer. There are a few circumstances when leaving some cash in a former employer’s 401k may be the right thing to do. Here is one instance:
If you are between ages 55- 59 and may need some cash, you would not want to rollover your full 401k.
Here is why: at age 55 or older, many 401k plans allow for cash withdrawals without the 10% early withdrawal penalty. If you are in transition – you may need to keep this option available to you.
Disclosures:http://www.hechteffect.net/?page_id=31