The books aren't treating this like a coin flip just because both teams are winless. Houston is a road favorite by close to a touchdown, with a low total, and the reason shows up in the box scores. The Texans have scored 30 or more twice this season. The Titans haven't topped 20 in any of their 4 games.
The two 0-4 starts don't look alike. Houston's 4 losses came by 5, 14, 2 and 4 points. 3 of the 4 were one-score games, and 2 of them were shootouts the defense couldn't close. Tennessee's losses look more like a team that can't score: 10 against the Jets, 7 against the Giants, 18 in Baltimore. One encouraging sign for Tennessee: the Titans' defense kept the Ravens scoreless after Lamar Jackson left with an ankle injury just before halftime. Jeffery Simmons is still the best player on the field for them on most Sundays. He had 10 tackles and a sack against the Giants.
This is a 12:00 PM CT kickoff in Nashville, and the early forecast says mid-60s, clouds and a modest chance of rain. That's a week out, so it will change. Nothing in it looks bad enough to slow either offense down.
For Houston, it comes down to whether the pass rush and a thin linebacker room can keep a weak Titans offense from hanging around. Tennessee can only make this ugly if Ward gets enough time behind that reworked interior line to push the ball to Robinson and Carnell Tate. Both coaching staffs just got dragged after close losses. Each one has a week to look at the other's roster and see the most winnable game left on the schedule.