I think you've taken this a little bit too literally and you've also not read it properly as I made the point that there is certainly a time for players to move on as was the case with Zabaleta.
Im not saying don't sell Aguero out of loyalty, I'm making the point that not only are the likes of Aguero loyal (which we under appreciate), they're still ****ing good players. Great players even who are good enough to make more history at the club.
People can throw stats at me all day but the most important stat is goals. He scored more goals than any other player in England last season across all comps and he scores more goals when he plays than any other player in the history of the Premier League.
You're right that Ronaldo will get replaced, but only when he is done. He's 32 now and is still Madrid's number one scorer, just like Aguero is ours.
Players like Scholes, Giggs, Ronaldo, Xavi don't get forced out at the peak of their powers at clubs like Utd, Barca and Real. They get treated with the respect their quality and history deserves.
Real aren't going to be like 'Bye Ronaldo, you're still great but we've bought a new young guy in to replace you immediately and now you'll be sold".
I think you've approached this too headstrong, without really understanding the concept of what I'm saying.
There is a right way to do these things and the personality and history of these players can be just as important that their quality on the field. Attitudes and personas build the foundations of a successful dressing room, which is a reason we're on the verge of bringing in a player like Alves. He might be old but he'll bring some great experiences to the club and hopefully it will rub off on others.
Passing the torch in football isn't fucking someone off and bringing in someone new. It's about that cross over period and getting that rub as you transition into a new era. Transition being the most important word in all of this.
If you look back at how many big clubs' legends leave, there's very often a section of the fan base who think it's too early, that it's a mistake. Most of the time it isn't. Loads of Madrid fans thought Raul should stay, Xavi was in the team of the year and won a treble in his final season.
The main point is that these legendary players of the Mancini will be replaced with new legends, so the fact they're legends isn't actually enough reason to keep them. The footballing argument is completely different, but your post had nothing to do with that, it was all about how we will never have players like Aguero again...