so - we've developed a fairly whizzy dashboard which pretty much manages to connect the dots together so we get full interaction paths to conversion, including connecting in offline conversions with online views for some clients. Still needs work, and will never be 100%, but its good enough to be useful.
next we enter a world of pain - attribution modelling.
add a complication - for the majority of clients, we don't do *all* online marketing - there is normally at least one outlier which means we have someone arguing that we're underweighting, overweighting or generally trying to cheat someone out of credit. We're not, so actually this won't change what we do, but it does mean we need to justify things with more than a gut feel argument.
and of course, internally, although we pretty much agree on the big points, we all have our own preferences. I guess its a bit like seo - more than one right way to do it.
Anyone been through this and reached a decent model? Or can point me to good research papers?