I reckon the small forward position is one of the positions most influenced by the form of the rest of the team, and the flow of the game. Put it this way, you aren't at he contest, people don't specifically kick it to you that often, and you can't run into the backline to chase a cheap kick.
And yet, if a team loses, fans look for 'passengers', and invariably there's a 'mercurial' small forward who only had 8 touches.
Clubs have GPS data on players, and whole of field game tape. From that I reckon a club would know if a player is putting in regardless of outcomes. Personally, I reckon unless you have seen that data, it's hard to say a bloke like Motlop is cruising or things just aren't going his way.
He has pace and skill, which is two things we lack. At 25 he's right on the cusp of being too old for rebuilding side, but for the right price I reckon he'd be an interesting bet, depending on how the club rates some of our younger players. .