Talent gets you picked. Choices keep you on the roster.

Being chosen is a one time event based on what somebody saw once. Staying is a longer test, run daily, and it measures different things: whether you turn up, whether you are coachable, whether people want to work near you. Plenty of people get selected and then get quietly moved down for reasons that have nothing to do with ability.

Ask what the staying criteria actually are, since they are usually unwritten. Watch who lasts in your group and what they have in common. It is rarely the most gifted one, and the pattern is learnable.