Tuesday marked the first of three days of joint practices between the two teams in the lead up to Saturday's preseason game in Denver.
O’Brien said the Broncos’ Super Bowl-caliber was on display on Day One.
“They look like the same type of team,” he said. “This is a really good football team, a lot of depth. Some really proven veterans on both sides of the ball.”
The Texans finished with an NFL-low two wins in 2013, while the Broncos went 13-3 in the regular season before falling to the Seahawks in the Super Bowl.
- Chris Johnson