Dondero said that while regretting what might seem to be the awkward timing of his departure, it was something he had been considering in light of his other responsibilities and recent developments with the company. Accountant Dondero is a founder and president of Highland Capital Management, a Leap stockholder.

Leap has called in financial and legal advisers to help it reach a decision on the MetroPCS offer.

Our View

The logic of a merger between the two major non-contract cellular operators has been accepted for some time and this has helped buoy the Leap stock price. But developments over the attempted takeover point to strong personal disagreements, which will have to be set aside if a deal is to be reached.