Today’s news that Sprint CEO Gary Forsee is quitting got me thinking that it’s been a rough year for chief execs. And for some, it looks like it might get rougher.

So far this year, we’ve had departures from:

Sprint, CEO, Gary Forsee

Niklas Zennstrom, CEO, Skype

Paul Reynolds, CEO, BT Wholesale

Alan Gow, MD, Virgin Mobile UK

Bob Fuller, CEO, 3 UK

Sanjiv Ahuja, CEO, Orange

Edward Whitacre. CEO, AT&T

Klaus Kleinfeld, CEO, Siemens

So, who’s next in the firing line? Well I can think of a couple of candidates. Alcatel-Lucent CEO Patricia Russo must be feeling a bit nervous after the statement of total and complete support issued by the company last week. But then of course, there’s Motorola’s Ed Zander.

Well, you know what they say – it’s tough at the top.