The decision to not go with Fernandinho was Pep double guessing himself, I think. Or, at least, that's the charitable reading.
To start a CL final without a proper defensive midfielder was a very ballsy call and, yeah the Chavs hadn't been in great nick just lately, but why mess with the blueprint that's been so irresistible since Xmas?
As grecian observes, it was only Werner's profligacy that kept it to a single goal by the break.
Feel for DCYE and Citeh fans generally, but they have arguably the best squad of players and, when not trying to out-Pep himself, the best manager in Yurp, so it will happen. Eventually.