"Either teams are spying on us or scouting us," Smith told a group of reporters, via ESPN's Tania Ganguli.
Smith's evidence: The Texans introduced some new concepts in their defense this week, and the Patriots (gasp!) adjusted to them. It was the second consecutive comeback win by New England.
"I'm very suspicious," Smith said. "I just think it will be a big coincidence if that just happened by chance. I don't know for sure, but I just know it was something that we practiced this week."
Smith admitted he had no particular proof.
"I'm saying it seemed like it," Smith added. "You can't never be for sure on anything because I ain't over there in their huddle, in their locker room, but it just felt like it."