On the one hand, Google Analytics is the ubiquitous digital analytics platform used by marketers to measure and optimize their effort against defined objectives. On the other hand, Marketo is a leading marketing automation platform found on thousands of websites. By integrating Google Analytics and Marketo you can enable a 360-degree view of your leads workflow, including offline conversions.Get the Paper
If you have a digital analytics project with a high degree of complexity, uncertainty and risk, we should talk. I only accept a handful of client projects every year - typically advanced digital analytics implementations or R&D proof-of-concept for agencies or large clients.
While Marketo excels at lead generation/CRM (oftentimes with an offline component), Google Analytics is more generic and can be leveraged to optimize marketing, onsite behavior and lead generation.