Not really related to the discussion (in which btw, Gerrard will become the clear winner when he wins the league this year, and is the winner regardless) but Coentrao's ability to play in midfield was heralded when he was signed. He was signed as a very versatile player, a defensive floater, capable of playing defensive mid with Alonso, as well as both fullback positions and as a left wing. It was already known from his time at Benfica that he could play in midfield.
There was a Goal.com article on it - Mourinho played a versatile player in one of his many positions, it's nothing special. T
his is not the article that I'm referring to, but it also has Madrid playing Coentrao in midfield - written less than a week after he signed for them. Likewise
this article. I know it's a minor point but it's one that you've made in another thread as well, so thought I'd step in. I can't find the actual article I'm thinking of but it might be that second one - either way both are evidence of Coentrao's versatility, and him playing in midfield wasn't a Mourinho invention.
That said, I don't rate Guardiola's moving of Lahm into CDM as particularly groundbreaking. For sure it utilises a very clever and all round perfect player in a role that benefits the team better, but I don't think it's new or revolutionary in terms of football as a whole. Again, it's worked for his team and hipsters will go ham about it, but it wasn't a Mourinho invention.