I agree with that, but I think we all know its not the case. Lasley is suspended, Carswell comes in for a game and plays a stormer, Lasley is back the next game. Carswell would possibly retain a place in the team, but it would be at the expense of someone like Murphy.
He's a first team player, yes, but he's not part of the spine of the first XI. For that reason, I think we've missed a trick not selling him at some point over the past couple of years while his stock has been higher outside of MFC than its been within.