Yeah I generally agree with you, however I believe his poor third year has more to do with training methods than lack of rotation but I'll save that comment for another time.
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See the highlighted part? I did everything in my power to make it clear that I was not comparing us to SAF's United and yet you ignored that. I said twice that becoming a team that's interchangeable like that is the DREAM. It's the pinnacle not the reality.
Please don't confuse rotation with 22 starters. That isn't the point. We still have obvious starters in this squad. Handanovic, Miranda, Murillo, Medel, Jovetic, Perisic, & Melo have not been out of the lineup unless they were rested. The fact we have also been able to get a lot out of Telles, Juan, Kondogbia, Icardi, Brozovic, D'Ambrosio, Santon, Ljajic, and Nagatomo is a bonus. I don't see how our ability to dip into our squad and continue to get consistent performances and results can be looked at as a negative.
I fully understand we don't have a 3rd competition this year, but the fact we can rotate while still having one less competition just further lends to that advantage. We were able to rest Brozovic, Medel, & Perisic on Sunday and still get the required result. Now we have a full week to prepare for the match while Napoli has to worry about EL. For me that's fantastic.