My feeling is players have so many sports science measurements taken game after game, day after day in training. This is the sort of evidence that would show what level a player is at. Whether he is physically performing at Premier League level or Championship etc. Would be buyers would be interested in the GPS vest stats. Whether the player has vision and nouse on the pitch sometimes needs to be worked on and isnt natural.
I can only think Aaron Lewis hasnt got the stats to back his performance, as he's always played very well for us, when he was given the chance.
Big picture plan is we are looking to support the running of the club with player sales. Bringing in players with potential and sell them on. Combine this with players coming to the club on loan from the Premier League, costing us very little if we are giving them a game. This season especially, due to lack of match day incomes, we are reliant on this as well. So down to money as well.