i can actually see improvements in his wife, being serious, those last pics of here are good. He should look to her for motivation. She should take over his account. If i was KOS this is what i would do...
First, clean out all pantry cupboards and fridge freezer of any products processed or full of sugar.
Second, make a fucking plan, make goals, short term and long term.
Doing weights is not his problem so maintaining what muscle he has is, he should do Cross Fit or high intensity cardio combined with weights, do circuits, aim to get fitter and stronger and get the heart in the correct target for maximal fat loss.
If he has to take a cycle of Clen/T3 and do some cutter AAS.
No need to reinvent the wheel, i just took up metal detecting, get?s me outside, i walk for miles and where a 25 pound vest when doing it, combine things to make fat loss or fitness more enjoyable, try tying a sausage to your wifes pants and having to chase and catch her to eat it?.