He was Brett Favre's backup for two years with the Packers.Hasselbeck said leaving the Seahawks crossed his mind only briefly.Imagining what it would be like, it was really a disappointing thing to think about, just because of how much work we have put into this here in Seattle, Hasselbeck said.Hasselbeck's agent, David Dunn, said the deal was a product of no less than 25 to