Hanson's miss came on third down after the Lions had lost 3 yards on a second-down run. The Lions sent the veteran kicker onto the field instead of trying to move the ball a bit closer.
"We didn't want to give up a negative play, and they'd been trying really hard to strip the ball, so we didn't want to risk a turnover," Schwartz said.
The Lions were hoping a three-game homestand could help revive their playoff hopes, but they lost against Green Bay last weekend and couldn't hold on against the Texans.
AFC South-leading Houston (10-1) has won five straight — two in a row in OT — and if a handful of teams lose, the Texans could be in the playoffs by the end of this weekend.
If the Lions didn't have enough problems, defensive tackle Ndamukong Suh could be in trouble with the league again after his left cleat connected with Schaub's groin area in the first quarter.
"I really don't have anything to say about that play or that person," Schaub said.
Suh was on his chest, taken down by an offensive lineman, when he extended his left foot below Schaub's belt.
It wasn't clear on replays whether the kick was intentional. Suh didn't stick around long enough to talk to reporters after the game.
Last year on Thanksgiving, Suh was ejected for stomping on the right arm of Green Bay offensive lineman Evan Dietrich-Smith and was suspended for two games. He has been fined in previous seasons for roughing up quarterbacks: Cincinnati's Andy Dalton, Chicago's Jay Cutler and Cleveland's Jake Delhomme.
Schaub stayed in the game, and was 29 of 48 for 315 yards with a 9-yard TD to Owen Daniels that tied it at 14 late in the first half. He also threw an interception.
Houston's Andre Johnson had nine receptions for 188 yards.
Detroit's Matthew Stafford was 31 of 61 for 441 yards with two TDs — tiebreaking scores to Calvin Johnson and Mike Thomas in the second quarter. It wasn't enough.
"We got what we deserved," Stafford said. "We didn't capitalize on our chances."
NOTES: Lions OT Jeff Backus (right hamstring) was inactive, ending his 186-game starting streak. ... Houston LB Brooks Reed (left groin) and OT Derek Newton (knee) were injured during the game.
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