The Potential Ability isn't actually changing. Stars are purely opinions of scouts/coaches based on a number of factors including, but not limited to, the ability of a player, the potential of a player, the performances of the player and the club's expectations. They do not accurately reflect the CA or PA of a player.
A dramatic change that you have witnessed is likely to come from your club first being a side expected to challenge for top 4 to a side expected to finish higher up the table than 4th. A player who is 4* for a team challenging for top 4 may only be 3* for a team challenging for the title.
Personally, I pay absolutely no attention to stars, as they are completely opinion-based. Pay attention to attributes instead. They're the only things that actually matter about a player.
A dramatic change that you have witnessed is likely to come from your club first being a side expected to challenge for top 4 to a side expected to finish higher up the table than 4th. A player who is 4* for a team challenging for top 4 may only be 3* for a team challenging for the title.
Personally, I pay absolutely no attention to stars, as they are completely opinion-based. Pay attention to attributes instead. They're the only things that actually matter about a player.
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