However 'enraged' you are and however justifiable that emotion is, your suggestion that Arriva be stripped of the franchise is childish at best when, as you demonstrate in the rest of your comment, you don't understand the issues they have faced. I talked to a member of senior Northern management who told me that they wanted to postpone the timetable change until Network Rail completed the electrification because of the huge problems all those delays would inevitably cause them and passengers but the DfT prevented them from doing so on account of all timetable across the country being linked. Why therefore should Northern be penalised for the problems that they have been forced into? Clearly they have messed up in a big way with some things but they have a contract with the government and will be held to account for their appropriate level of culpability.
Like you I am frustrated by my train journey sometimes but I am trying to understand the problems before ranting about it and there is so much at play here that makes me feel that you are directing your enragement in the wrong places.
If this is the case, I wish they'd come out in public and say it. If the ultimate blame lies with the DfT, then everyone should know about it