@goldensleather I am TYPE A, a parent, have ADHD and work in medicine.
I see this flailing around that he seems to be doing and I've done it myself, though posssibly never quite to this degree likely because I never let myself lose any momentum (yes im burntout lol) due to a fear of being paralyzed via my adhd....and because I haven't parented 3 under 3!
I have a very hard time not procrastinating on something big, especially when I have to organize myself to get started and doubly when I get interrupted a lot (aka parenting, illness, being back up care, etc). It ends up with me going down a ton of rabbit holes, then I get overwhelmed, then I start a home project and ultimately wake up a year later, no further along.
If he has ADHD, I would consider looking into ADHD coaching and possibly settling on a time line (I.e. 1 to 3 months) with a short term nanny or another form of back up care, just to get him unstuck and built up forward momentum.