Speaking from years upon years of researching the game.
The only players who are able to buck the trend are players with exceptional pace.
Vardy, Wright are players with that pace because its something that cannot be taught or easily defended against.
Then they have luck, right manager willing to take a chance on them.
He is having the best possible season if he recreates it then time to have a look but he like Wrighty are in the top 0.1% of players who made something when they looked dead and buried.