Re the post from @EarringsandLipstick
*That's an awful way to do things. Absolutely he should have been informed privately.
I don't know, but it doesn't sound totally legal to me, that his position has become redundant, and now he is eligible to apply for one of the 6 lower level positions.
If he does this, and gets one of them, he won't be due any redundancy - or would be be anyway? I think you should confirm this. Regardless of him getting the lower-level role or not, he's entitled to a redundancy offering, surely?
Otherwise ir sounds like they are trying to save money - he's made redundant from senior role, takes more junior role, junior made redundant will cost them less*?
Op. I appreciate there may be more to the detail
First if all. Yes an appealing way to advise people of potential redundancy.
Whilst it may not directly impact your husband, the organisational change doesn't sound to be legal. In effect, to make someone redundant, there job has to no longer be required. What they are doing is telling him his job is no longer required and he can apply for a lower grade one. Unless the lower grade ones are all being changed to something significantly different, then the more junior six employees shouldn't have to reapply for their own roles when nothing has changed.
What should occur is your husband be made redundant and the other six remain in their roles. If they are subject to restructuring and their roles change my more than a certain amount (we used to call it an 80/20 whereby if the role changed more than 20%) they needed to reapply.
Is there an agenda here where they want to get rid of one of the six employees so remove your husbands role and slot him in the lower grade one?
Either way they are very vulnerable at an ET unless there is more to it