This trade doesn't make sense to me. It's very odd. We expect the playoffs this year, yet giveaway a top experienced backup QB for a late round pick in 2017. The depth chart at QB is now weaker. And don't give me the EJ is better rebuttal, he's been in street clothes for a reason. He would have been dressed week 1 and 2, if the coaches thought EJ was competent enough and a better fit to backup TT.
The only explanation is that Cassel demanded this and wanted out.