[mnicole]

I was told to do this by HR after complaining of similar symptoms, citing that I would be 'completely refreshed' afterwards. Two weeks later, I didn't want to come back. Six months and multiple random days off to balance work/life later, I still didn't feel any different.

This is burned out, not overworked. Overworked leads to burn out, but so does not being heard out by the executives. Their inability to take the OP's experience and recommendations seriously (which is what they're doing by continuing down a path that won't work for them) is going to ruin them.

I'd suggest citing this as the reason for resignation despite their clout, because while they have connections, they don't have the foresight to do business effectively in this industry. Offer (again) any suggestions you have, see if they are interested in going another route to salvage you, otherwise take the steps you need to move along.

[rmATinnovafy]

Good point.

I agree with what you say. The fact that he may not want to return to work is good. That means he can move on to better things.

I've been there. Not wanting to go back made me realize that I needed to move on.

Yes, it is tough. But I'm sure he will overcome this.

Good luck!