Such a great topic.
I once worked for a manager that told me "perception is reality." To this day I flip back and forth on how that statement actually applies to me. Was she implying that her perception of me, of the workplace, etc. is a reality? More specifically her reality out of all possible realities? Or did she mean that being the manager- the perception she bears - replaces all realities and as the manager that reality is the only one that matters? I have no idea.
Take Dele and all the things you listed: young, wealthy, famous, etc. It seems a perception of him from Jose is lazy, probably stubborn, maybe selfish, i.e. bad teammate? I'm just guessing here. Jose's perception is diametrically opposed to the way Dele probably views himself. Which perception is correct? Which perception matters most? Does it matter at all?
It's a total guess, but I'd say it's why Dele being in/on the team is never settled. Jose probably has a metric for performance he wants Dele to achieve. Maybe Dele thinks he is hitting that metric during the game(s). Then he's back on the bench for 4-5 games in a row. Both people think they are right and nothing is really changing.