Yes, you should definitely put a potential 60pt Dman on the block because he only has 2a through 6 games.
If you are thinking about trading him because of the slow start - you won't get 60pt Dman return for him. No you absolutely should not trade him. Keep him - and in March when he's on a pt/gm run down the stretch, you'll be thankful you did.
Especially in a cap league where he only needs 42pts/yr to be worth your roster spot. He's one of the best bang for your buck Dmen in the league.
I wouldn't be shopping him.