It happens all the time. Rookies come into the league and spend a few years relying on pure ability and natural talent before figuring out “what it means to be a pro”. Then, you hear them say things like:
“I think I could’ve done some things differently, It didn’t go the way I was thinking it would go. There are a lot of things that go into being a pro. It’s taking care of the small things and sacrificing things. It’s bigger than people understand. There are a lot of layers to this whole professional football league.