There is an argument for Wales to have a full-time Secretary of State even if Scotland hasn’t, especially if that Secretary of State is Paul Murphy or someone very like him. To that office now belongs the right to determine which, if any, further powers are to be devolved to the Welsh Assembly.
You can forget that with Murphy. If he hadn’t been bound by collective responsibility, then he’d certainly have campaigned for a No vote in the referendum. Britishness Brown has made a very pointed appointment.