Well, I am not sure that there is anything Tableau can do that Qlik can't, but the other way around. If you are using Tableau in an enterprise fashion, then you are also probably using Alteryx to do the ETL stuff, at least if you have many data sources, where with Qlik you don't need that extra software cost as Qlik does it all though the engine. The openness of Qlik, through the API's allows you to do so much more with Qlik than the "others" could ever imagine of doing. Also, get ready for it, if you aren't a salesforce CRM customer, they will certainly be making a push to ensure you have to be. Might be worth a longer discussion and happy to chat one on one if that would be helpful.
