Sculley rose to the challenge. Rather than telling people what to do, become a facilitator who helps each team set its own goals. You'll probably be surprised to find that most people are far harder on themselves than you could ever be. Sure, obstacles are a chance for people to prove what they're made of. But they're also a waste of time, energy, resources and goodwill.
Few things deflate an employee more quickly than a boss who hogs the spotlight.
Bosses almost always get credit for what happens beneath them, so instead of claiming credit, share it. You'll fuel the entire team. Given the growing labor shortage, talented people are increasingly hard to find. So you've got to make it your constant job to find and recruit people who will add energy and expertise and can take your team to the next level. Become a business card collector even when you don't think you need to be looking.