Steve brought a directed vision, tempered by past fiscal failures ...
Before he got back the R&D was going in 100 different directions, basically the lets try everything method and see what sticks.
---
He knows where he wants to go in 5-10 years and runs off after a goal.
Don't know who can do that, and it is hard to snatch a visionary since they tend to be running their own companies.
---
Heck, even the current methods of operation are contrary to typical Wall Street -- aka, buy revenue with megadebt, and spin off lagging operations.