Most people who end up being successful have good grades, but it's orthogonal - there's no extra information than if they put together a website and have bunch of fans who love coming and seeing what they're doing.
Gabe NewellA lot of times I make people better by getting stupid, distracting, bureaucratic stuff off their desk. That's an incredibly easy way to make a senior person more productive.
Gabe NewellWe started off with a set of objectives for what we needed to communicate with the company's identity, created several proposals intended to meet those objectives, and picked the one that did the best job.
Gabe Newell