MarketWatch, ahead of Yahoo's third-quarter earnings, said the company was looking to "start fresh." In other words, kindly ignore the drop in net income, the rise in expenses, the continued problems in display ads the company just reported — that's all in the past. How many fresh starts does a company need — or deserve — before current management is held responsible? One thing I notice in recent rah-rah stories planted by Yahoo PR: Everyone talks about how confident employees are in Jerry Yang. The unspoken message: No one trusts Yahoo president Sue Decker. And why should they, after she pushed out, in short succession, COO Dan Rosensweig, CEO Terry Semel, and popular U.S. display-sales chief Wenda Harris Millard?