How can you compare Rodgers and Mourinho?! Mourinho is world class in every aspect- coaching, man management, press etc. Rodgers unfortunately isn't. He may well be a top coach in the next few years, hell he may even get better at handling the press, but neither BR, or anyone else, is going to match JM's all round ability for a long time IMO.
Also look at the fact that Porto were already one of the best teams in Portugal (same with Chelsea (with Abramovic's investment), Inter and Madrid in their leagues). The League title wouldn't have been that hard for them and maybe a lucky CL cup run got them to the final, along with some admittedly good performances.