[fma]

If it's a large company I imagine there are many positions open. With enough clout - why not become an executive, or even take a step lower, in another area of the business? Hopefully the company values your leadership and managerial skills (and less so your tech knowledge, since you're high up) and will give you a chance for something new. Having something new will give you a drive to learn and enjoy your new position.

Others in your company may be able to provide feedback on the possibility of doing this...Even talking to them may open doors for the new position. Just make sure it's not a worse position that will give more burnout!