A reboot is not a reinstall. You don't need a new organization - you start a new plot in the one you have, memory intact.
I write and speak for IT and strategy leaders about the culture underneath the strategy - using case histories, and just as often literature, songs, film, or culture more broadly, to get at what the consulting deck usually misses.
Start here

The Gatsby Fallacy
You don't get a blank canvas for a new strategy. You get the one you're already running - history, capability, culture - and it's a springboard or a shackle depending on how you use it.
Catch the drift

The Three Mandates
"Just align with the business" is a dangerous misconception. Real IT strategy is the managed tension between three mandates - what's asked for now, the commons nobody funds, and the bet on what isn't obvious yet.