Renfrow on the other hand is definitely worth a second and maybe even more in ppr.
103 catches for nearly 1100 yards and 9 touchdowns has some flukiness to it and feels difficult to repeat, but it's not like he got 150 plus targets. He had 128, which isn't crazy in a 17 game season. It's easily possible for him to get 100 plus again along with Adams and waller getting theirs. Carr averaged 547 targets/16 games before putting up 626 in 17 last year so there's plenty of room for their top 3 guys to get 400 combined targets and still have Jacobs and the backs and other receivers all get some of their own.
His upside is capped, which is why i wouldn't pay as much for him as i would for other 25 year old receivers coming off a year like that, but he's got a good chance of being a younger version of Edelman in McDaniels offense.