Honestly it's the opposite. The way you get noticed and promoted at Google is by building something new, even if Google is already doing something else in that

Honestly it's the opposite. The way you get noticed and promoted at Google is by building something new, even if Google is already doing something else in that space. That's part of the reason there's so much duplication at Google. The VIPs (Vest In Peacers) are more inclined to do the easier thing of adopting and building on what's already there, which is of course the better thing: virtue of laziness and so forth. (source: xoogler)