That's extremely unfair to Ballmer- Ballmer made lots of bets and put a lot of effort into them. Some were given up on- the phone, but you can't critize Azure, among many. Microsoft has developed lots of products and can develop more. They did plenty under Ballmer. When they fail they try again, or invest more effort.

Google has only one cash cow. They don't know how to develop products and how to win customers. I feel like products at Google get developed when someone has a bright idea, and then as soon as they get promoted they go do other stuff, and the business isn't really about nurturing a new product. All they care about is their big ads cash cow, with which nothing can compare.