First let me say I can certainly understand how frustrating this is.
Instead of putting him in his crate can she put a leash on him and keep him by her side (or atleast 6' away) until he gets it to do his business outside? Do ya'll praise praise praise him when he does poop outside? The create really needs to be a safe place for him, as is now he might see it as a place of punishment. Have there been any changes in the house? This breed is very OCD and he might be expressing his anxiety by pooping in the house. A huge que to this is him pooping because you're wife wouldn't let him on the couch. In no way am I making your wife wrong! I'm just trying to show that it could be due to changes that you nor your wife have even thought about.
Good Luck and please keep us posted.
I would take him out every hour and praise praise praise when he goes poop. But please don't keep him in the create. :-(