Of course, and this is just looking at it all realistically with all the information we know or assume, Derick sort of looks like a dude who is a new parent to an infant, has recently had what we speculate is serious surgery that would be painful and would alter his eating habits significantly during recovery, has been preparing for an international move, and in that photo, is on a weekend work trip. I mean, every person I know who has an infant at home sort of looks exhausted and lifeless. My own experiences with jaw surgery led to significant weight loss and a deadish look and took a while to recover from that. Plus, it can change one's look and Derick's now correct alignment has altered his appearance, which may or may not further change when all of the swelling goes down and the teeth move into correct position. Traveling, especially for work, is just tiring. I figured all of this would be obvious, but maybe not.
Now the fashion choices are another matter entirely. It's not my taste and I agree, that long hair and scraggly beard could use some work.