Sorry if you don't comprehend that your comparison was terrible and apples / oranges. And I'm making all those points, not just one.
So let me get this straight.
1- you said player A, coming off of injuries last year and this year should "be a leader" and not interrupt the chemistry of a winning team despite said player being better than the guy who has been playing.
2- when the situation of player B, which was comparable based on injuries, came back and played it was ok because of age.
3- when that argument didn't hold up you changed your argument to being about position.
You clearly have different standards of what is and is not ok based on your opinion of a given player. That does not change the fact that their situations are remarkably similar and yet you ignore that when it is convenient for you.
Should Peyton Manning have taken a backseat to Osweiler last year? Should he have been a "good leader" and just held that clipboard like a good soldier?