And here's what Muret had to say on being dubbed a "walled garden": “I think we have a pretty good track record, and DoubleClick has been extremely open with data. We have good partnerships with all the exchanges, with DMPs [and through] our analytics APIs. We realize you’re likely to use multiple tools, [so we’re] interoperable. You can use DBM [DoubleClick Bid Manager] without buying our media. There are going to be times when we have to take user privacy into consideration, [so there are restrictions you see] around Google’s proprietary data. Our default operating mode is to be as open as we can and Accelerated Mobile Pages is an example where we’re making this fully open-source and available to all partners and clients. It takes extra work, but we thought it was worth it.”