The way I see it is that Erdinç seems to be rated by Graham Carr and his scouts. I'm prepared to trust their judgement after their good track record so far of unearthing great talent in Europe (Ben Arfa, Tiote).
Erdinç did well in his first season at PSG and yes he had a stinker of one last season. No one really knows how he's going to do next season. But like I say, I'm ready to give the lad a chance if he were to come here.