Ah this is a tough one. I sort of know how you feel, my DH was made redundant (legal profession) and he was getting nowhere with job applications and interviews - he went to so many that didn't even bother to let him know whether he'd been successful or not. I think the constant cycle of applying, psyching yourself up for an interview and then the knock back can really take it's toll on anyone - never mind a previously successful person responsible for the financial wellbeing of their family.
My DH got very upset when I tried to suggest different ways of job hunting, he didn't want to talk to anyone about being unemployed and would shy away from the topic when out with friends - unfortunatly everyone has an opinion on what someone should be doing to get another job. My parents kept asking me why he wasn't 'knocking on doors' and 'applying at tesco'. It was hard for me too, defending him to everyone, whilst at the same time having niggling doubts about whether he could be doing more. It's one of those make or break situations I think, I tried to bite my tounge most of the time and tried to be as supportive as I could, because I'd never seen my strong DH so deflated and upset.
Six months of nothing went buy and I got him a job at my work working in the warehouse on minimum wage - quite a come down from the City law firms, but he took it in his stride and knew it was for the benefit of us. He was only there six weeks before he got a 2 month contract in the City and then a month after that was offered a great 12 month contract that ended up being extended.
But - 2 years to the week of the first redundancy they terminated the contract with immedate effect, no notice, no pay - off you go. He was devestated again and I was also dreading what was to come.
In the end, it was the best thing that ever happened. We sold up and moved to Australia and never looked back - he has a great career now and the struggle of a few years ago is a memory.
Sorry for rambling on a bit, I just thought it might be helpful to hear that there will be another job for him, you've got to concentrate on keeping him feeling supported and try your very best not to resent him. You can have a winge to friends (and on MN) but you've got to try and keep his confidence up if he's to get that next best thing.
Good luck x