As an ex-pat Northamptonian I can confirm that Northamptonshire County Council has been a basket case for a long time, however, it has been Conservative-controlled for the last 13 years. Nothing cross-party about it.
Corby has had problems since the steelworks shut, so will be hit particularly badly.
It's another example of how poor the country is at revitalising communities who had a huge employer like that shut down for whatever reason. Suffice to say, I don't want to Brit-bash unnecessarily, as I'm not sure many other countries do it all that well either.