I would expect to see Caesar play some, and we'll see how he does. The DL is mostly untested, but there are a lot of players, and I think a lot of talent, there. I think we will see 6 players rotate at DT (Payne, Arp, Burks, Berger, Cole Baker, and Caesar), and whoever does the best will play more.
I'm a little worried about Coleman, not because of any news, but just because the roster shows that he weighed 313 lbs a year ago, 308 lbs in the Spring, but "only" 265 lbs this Fall. That's a pretty extreme weight drop in 4 months, if accurate.
Another DL that I'm thinking might pop into view this year is DE Vonnie Watkins. He was supposed to be in the 2017 recruiting class, but arrived last Spring, I think, so he may have been a grayshirt. He might redshirt this year, but as I recall he had a pretty impressive high school tape, so, with an extra year, he might play as a true Freshman.
“We have two ears and one mouth so that we can listen twice as much as we speak.” ― Epictetus