[flormmm]

Performance is all that ends up mattering at the end of the day. Both Apple and Pixar ended up as wild successes - so yes, Jobs could effectively run both (in hindsight).

The futures for both Twitter and Square are not so sure. At face value, seems like a net positive for Twitter and a net negative for Square.

[pan69]

Jobs was an investor in Pixar. He didn't run the company.

[spicyj]

Steve Jobs didn't really run Pixar.