I didn't think juve were that solid at the back, but celtic's response to conceding a silly goal in the first few minutes was naive. the game looked a tactical mess at points, I suppose had celtic taken one of their chances you'd applaud them but pouring forward after going 1 down was silly and they deserved to lose, they were punished harshly for a few silly errors but that's how it goes in the last 16 of the CL.
the problem juve will have I think is that wherever Pirlo goes, shutting him down can make the difference between his team being brilliant or average, I thought celtic did a lot better job of pressuring him than chelsea did and juve looked a lot less slick overall because of it.
interesting to note despite the constant resistance to goal line technology the first goal was attributed to matri, whereas if marchisio hadn't slammed home the follow up it probably would have gone down as no goal at all.