I fell very hard for Jay Neagle, thought he had all the talent in the world and just needed to get his fitness up. Turns out that was an impossible mountain to climb.
Going the other way, I thought Baguley lost every contest he got anywhere near and was a liability in every facet of the game. Then one day I realised he had become (or perhaps always was) a very competent back pocket and was vital to the teams success.
More recently I'm so pleased that TBC has stolen back the #1 ruck mantle. I did not see that coming.