Once a guy like that gets into a college strength and conditioning program, and away from mommas cooking, they tend to get more cut. For example big Dex lost almost 20 lbs in his first summer conditioning program.
Let's keep in mind that D. Pennington is coming off a major injury and rehab. It is not uncommon for a player to be out that long and put on a high amount of weight. Especially someone who was already big to begin with. As a person who has played college football before I can tell you that during summer practice he is going to lose a good 20 to 30 lb of that before the season. Same way a lot of those players who weighed in are about 10 lb heavier than last year, they will shed that 10 lb before the first game. This is not a major concern for me as it may be for others