That's not what a 'marketing manager' says, that's what an 'agency' says. Very different things.
Part of this misunderstanding derives from what was hinted at in the article in that the valley has basically a complete lack of understanding of what marketing is.
You're saying a 'marketing manager' doesn't want to put a line in their resume with how many millions they are responsible for in google and facebook ads?
I'm saying that a marketing managers don't say this:
"What's your marketing budget? We can help you spend it!"
That's what agencies say.
Some marketing managers may like to talk about 'budget spend' but that's only one part of what they do, and remember that every 'marketing manager' knows how fickle spend is and is not going to care about 'spend' but rather 'ROI' on that spend.
Exactly that. They want to put a line in their resume showing what sort of measurable growth they delivered with that budget. Having just the budget without the outcomes is not a good thing.