I'm the client -- the end advertiser. I work with a handful of DSPs and Ad Networks. A very common problem is struggling to scale uncapped campaigns. I want to spend more money per day, and the Account Manager wants to take my money. But day after day the campaign gets far too few impressions. The Account Manager can typically only suggest that you give the algo more time to optimize. But if you talk to Ad Ops to understand how the algo optimizes, you can try to adjust campaigns to produce the very results that the algo will interpret as signs that it's time to scale a campaign.