Who are some players that looked great their first few years but didn’t pan out to their potential but were still all stars. An example would be KAT. His first 3 years he was seen as the next best thing and franchises wanted to build their team around him. Fast forward 8 years he’s seen as a borderline all star and is nowhere near the mvp candidate people thought he would be. AD would be another one, people were thinking he could be one of the greatest PFs ever and he still ended up being really good but he didn’t hit that ceiling people thought.
Chris Paul was an MVP candidate in his 3rd season. An argument could be made that he should have won. He continued to perform like a top 10 player for almost a decade but he never came close to winning MVP again.