It's a tough time to be the CEO of a technology company.  With Carol Bartz being ousted at Yahoo this week, RIM's dual-CEOs getting eyed by everyone under the sun and Léo Apotheker of HP being eyeballed for his wishy-washy nature over consumer goods in the wake of the webOS debacle, it seems as if every head honcho at a tech company is on the defensive as of late.

With this in mind, our own Jon Rettinger was asked to appear on CNBC's Street Signs on September 7 to discuss which CEOs he thinks should remain at their posts, and which should be shown the door as quickly as possible.  Some may surprise you, others may not, but we'd love to hear your thoughts in the comments below.