Every vendor wants to sell you "one tool for everything." Real agency work is not one kind of thinking. You can still want one workflow without pretending one screen can do it all, and the rest of this is why that distinction matters on actual Mondays.
The pitch vs Monday
The pitch is always clean: one editor fixes creative, legal, and numbers.
Monday is messier. You need a proposal that sells, a deck that presents, paperwork that holds up, and a sheet that does not lie about the math. Those are different jobs, and they should not all feel like the same cramped UI. Once you say that out loud, the next section is almost obvious.
Three kinds of work clients actually pay for
Think of these as three lanes that run in parallel on every account.
Stuff that has to look right. Proposals, reports, decks. Layout and hierarchy matter. A narrow text column is not a slide, no matter how hard the vendor tries.