Both Cleveland and Detroit were exactly who they have been all season. Remember, Cleveland smoked Cincinnati on MNF just a few weeks before we played them and Detroit has scored on everyone all year (except for NE). Both teams have bad records but have lost mostly close games.
The Texans are actively tanking. I mean, they benched Davis Mills because he was coming too close to winning games. The Bears traded two of their best defensive players at the deadline. Their improvement was almost all due to growth in Justin Fields (who will be the best QB in his draft class) but without him they are a bottom five team.