I don&#x27;t think it&#x27;s an assumption. Just look at the contributions of some of the senior staff engineers such as Brad Fitzpatrick for GO, Jeff dean to name a few on their projects. I don&#x27;t see any parallel at Mozilla who could rival them. Well, for really ambitious software projects, you really need someone who has tonnes of experience and can write really  good code. Not to say that Mozilla doesn&#x27;t have any, but I think they are not in the same league.