When you inherit a Google Ads account that's a genuine mess from another agency, how do you actually decide what to keep?
Picked up a new client this month. Previous agency had the account for almost two years, and the first real look inside was rough. Six campaigns, half of them overlapping on the same keywords. One's still running a Smart Shopping campaign nobody's touched since it got deprecated. Broad match everywhere with basically no negative list, and conversion tracking that's firing but pointed at the wrong goal about half the time.
Normal instinct is to just rebuild it clean. But there's two years of auction data and Smart Bidding history sitting in there, and ripping everything out resets all of that. Patch it instead and I'm stuck living with structural decisions I never made, which gets awkward the first time performance swings and I have to explain why.
Curious how people actually draw the line here. Is it a specific broken thing that makes the call for you, how much real history is actually in there, or just gut feel once you've poked around for an hour?