Undersized DT

Hi everyone,
I just wanted to share my concern about the size of our DTs. Except for Claybrook (300lbs), our 2 new comers are 255 (Robertshaw) and 265 (williams). with these sizes, I'm afraid that we will have a hard time filling the middle lane... keep in mind that our DEs are 265 lb (Bowman)and 239 lbs (Stewart) which I already consider small (don't get me wrong, I love Stewart). I know that the Als philosophy is to go for speed but this is a bit ridiculous... might as well play a 3-4, Let's say what Jessy Lumdsen do tonight and hopefully, I am wrong on that. have a great game