If a CMO signs contracts with ad networks and tag management vendors that collect user data, essentially giving third-parties access to the company website, the CIO had better be involved. When the site slows down or online customers start receiving sales-killing content warnings or security gaps widen, the CMO will be lost and confused in the Tower of techno-Babel.\nIt takes a CIO to see the underlying problems and make the right fixes.\nFew know this better than Ghostery, maker of a popular consumer desktop plug-in that shows which companies are collecting data. Ghostery has recently jumped into the enterprise space with a similar tool showing the ecosystem of third-parties collecting data on a company's website -- an ecosystem that can get terribly convoluted and lead to numerous performance issues.\nMost CMOs will shake their heads at the ecosystem map that Ghostery's marketing cloud management tool delivers (see image above).\n \nThis is why CMOs need a CIO.(Click to enlarge.)\n\n\u00a0\nThe CIO, on the other hand, is familiar with this kind of complexity and will be able to spot the problem, call up the service-level agreement associated with the tag management vendor, point to the violation in, say, latency, security or limits on the number of partners able to access the site, and ensure that the vendor gets back into compliance. Other times, the problem might stem from the company's own website, not the third-party vendor. And so the CIO might have to address an architectural issue.\n[Related: CMOs Paralyzed by Paradigm Shift (and CIOs Aren\u2019t Helping) ]\nEither way, chances are the technical problem will be over the CMO's head.\nCIO and CMO Must Find Common Ground\n"This shows how important it is for CMOs and CIOs to work together," says Ghostery CEO Scott Meyer.\nGhostery's ecosystem map is a prime example of critical, common ground -- that is, the company website -- where the CIO and CMO need to be in lockstep. CMOs want to move quickly to capture revenue opportunities with these third-parties, yet the CIO needs to be onboard from the beginning in order to fix problems quickly.\n[Related: CIOs and CMOs Must Join Forces to Win Digital Consumers ]\nBy working together from the get-go, CMOs and CIOs can get out in front of technical problems that threaten to derail the company's prized asset, its website.\nIn this vein, Forrester advises CIOs and CMOs: "Put guardrails in place that clarify acceptable project scope, cost, and business impact to keep projects manageable and relevant, limiting projects to those that map to corporate or divisional growth projections or those with a business case that can prove a margin-positive return on investment within a two-year time frame."\nWhen Marketing Run Ahead Trouble Can Follow\nChad Westfall, Web delivery director at Intercontinental Hotel Group (IHG), knows how marketing can outrun IT leading to performance problems on IHG's sites that collectively receive close to a million visitors a day. He now uses Ghostery's enterprise tool to identify previously unknown re-targeters coming through contracted container tag management vendors.\n[Related: It\u2019s Risky Business When CMOs Tackle Tech Alone] \nIn most cases, Westfall has been able to contact the right tag management vendors to solve the problem. Other tag management vendors weren't so lucky; IHG has stopped doing business with a few of them.\n"In our marketing department, we have an aggressive team that's always looking for revenue opportunity through re-targeters and other third-party DSP (demand-side platform) solutions. They want to capture conversion and get people back to our site," Westfall says. "But we started to see some degradation in our synthetic monitoring tools, at least from the standpoint of performance. We were putting lots of third-parties on our site."