Almost everything in this post is wrong. How does it not matter where Chelsea was before him? Turning a midtable club into winners and turning the runner-up into winners after additionally investing hundreds of millions in the transfer market is hardly the same. You just said Guardiola needs to make Liverpool champions. The 8th of the PL. When did Mourinho achieve that?
I would say that it was Roman's billions that made Chelsea champions in the first place and not particularly "Mourinho's influence". Except you also believe that "Mancini's influence" made City champions and not the oil money.
Mourinho didn't unlock Barca either. He won one out of 6 games this season against Barcelona. He played 4-2-3-1 with his usual lineup and pressed high up the pitch => he lost 1-3 at home. He reverted to 4-3-3 park the bus tactics with Pepe in midfield in the very next game => he lost again at home. The last game he won, he won when Barca was without Pique (not match fit), Abidal (liver transplant), Villa (broken leg), Sanchez (knock from the Chelsea game, had to sit on the bench) and Fabregas (not risking more injuries ahead of the second Chelsea game). Barcelona had to play Alves and a reserve player (Tello) upfront. Whereas Real played their full strength side.
The core of Mourinho's Porto side also made it to the Eurocup final in 2004. It had Deco, Carvalho, Nuno Valente, Maniche, Costinha and Paulo Ferreira in it. All of them played in the EC final for Portugal. A team that beat England, Netherlands and Spain on its way to the finals. Far from poor and not compareable to the current Porto side.
Mourinho's sides don't really go south after he leaves either. Hiddink, Ancelotti and even Di Matteo won major trophies at Chelsea with basically the same core of players. Di Matteo even won the CL with David Luiz, Cahill and Bosingwa in defense. Beating Bayern at their homeground, something Mourinho couldn't achieve with a much better side at his disposal this season. Only Inter went south but Inter's squad has an average age of 30 or something like that. Most of their players didn't have anything left to play for after the treble.
I'm not saying that Mourinho is a bad coach by the way. He's among the best. But if you think "making Liverpool champions" is what Mourinho is all about, then I'm just lost for words. Only Rehhagel, Benitez and Di Matteo belong in that category in this century.