If you want a QB, you should probably hope the Lions take Juedy or Lamb.
If you want Brown or Kinlaw, hope the Lions take a QB.
If you want an OT to fall, hope the Lions take Derrick Brown
If the Lions take Okudah, Lamb or Jeudy will probably fall to the Colts.
I'd be excited to have a year or two of Rivers mentoring a young guy like Love, Eason, Fromm... And choosing to draft a LT or DL at 13. It's probably not likely that they trade up to get what looks to a less than usually talented third QB in the draft, so why not see if Rivers can do better than last year's JB with a better line, and organization around him.
He makes iffy decisions, but the guy can read a defense, and has a ton of experience to impart.