Stating an opinion as fact, doesn't make it a fact. Here's my opinion: 285-290 pound DT's are not undersized in a 4-3 or 4-2-5 defense. It's undersized for a 3-4, but not a 4.3. At 285-290 pounds, the DT typically has a balance of strength, quickness, agility and speed. They use those advantages and good technique to put the offensive linemen on their heels, thus dominating teh LOS. On the DL, it's not about weight, per se, but about ability.
There are instances where bulk just makes it easier as a DL, but (in my opinion) those times are much less often. Our problems last year wasn't size, it was speed and technique. Early in the year, the only push we got on the QB was when Gotsis broke free. As the year progressed, Freeman progressed and began emerging. Except for Green (who was oft injured in his career), the rest of the guys were young, inexperienced and learning. Losing some of the players we did in the off-season last year really hurt our depth on the DL. It may have improved the lockerroom, but it was truly a "thin gold line." That being said, I'm excited to see how this team performs in the fall. We have everyone except for Green coming back, bigger, stronger, faster, and more experienced. Add to this, Jabari in middle.
If we push Gamble out to SDE, I don't think we're undersized at all. Hunt and Gotsis are around 285-290, Gamble is in the same range at SDE. With Freeman at WDE at 240-245, I think we'll have an excellent run-stopping DL. Swap KW for Gamble on 3 and long, and we'll put a lot of pressure on opposing QB's with a 4-man rush. That's what I expect and hope. There's much speed and quickness on this DL. If they stay healthy and the players progress normally from last year, we'll have a pretty good defense this year.