Considering that I'm the first proponent of an expensive, deep squad that the manager can call on at any time to keep up momentum and seamlessly charge forward towards trophies/CL qualification, I'd be quite hypocritical if I then also blindly espoused the selection of the same eleven throughout the season.
Look, there are places where rotation is useful, and there are places where the risk outweighs the reward. Against Monaco at home, for example, was one place where rotating every one of our players out and bringing the squad/youth lads in was a strategy that, to my eyes, was feasible and necessary - ditto the home and away games against Qarabag. But against Leicester, a formidable but still conquerable team, at the beginning of our cup run? No, I'd say that isn't a place to take risks that could leave us with one fewer cup to pursue.