resigns

Chesapeake Energy CEO Aubrey McClendon resigned his post as chairman Tuesday, and will end his participation in a hugely lucrative and highly questionable investment deal 18 months early. But if you think that means he's turning over a new leaf, let's drill a little deeper ...

As Larry Page takes the reins from CEO Eric Schmidt, the questions for investors are: Will Facebook keep gaining on Google? Or will Page steer it back to its original counter-corporate spirit, embracing risk over short-term profits? Or have the risk-takers gone soft?

In a tumultuous year, book retailer Borders is dealing with another bump: It's chief financial officer, Mark Bierley, has resigned "to pursue another employment opportunity" -- nine days before the company is scheduled to post quarterly earnings.