HOUSTON (CBS Houston): Despite getting off to a 3-1 start, Texans Head Coach Bill O’Brien is anything but satisfied.

During Monday’s press conference, O’Brien gave no quarter to his offensive line, which struggled for the second week in a row.

“Line of scrimmage penalties, false starts…can’t happen.” O’Brien stated. While in film session, the coach showed his players their struggles, and explained of his team’s execution at the point of attack, “It’s about 50/50, which isn’t good enough right now. It’s 50% where we do the right thing and we execute the plays properly, and things look good. Then its 50%where, maybe it’s a bad call, maybe it’s not executed properly…it has to get better.”

He didn’t limit his displeasure on the blocking and protection to only the line, either, pointing out that tight ends and running backs are also involved, stating, “Everyone is involved in protection on certain plays.”

Su’a-Filo has work to do

Despite the struggles of the offensive line, only Duane Brown (67) did not play all of the teams 68 offensive snaps. The team could not open holes for the running backs, who totals just 15 yards on 17 carries. Ryan Fitzpatrick was sacked, hit, or hurried on 13 of his 37 dropbacks.

Guard Ben Jones specifically struggled with Marcell Dareus. Yet, 2nd round pick Xavier Su’a-Filo didn’t take a single snap in the game.

O’Brien was very pointed when asked about why the UCLA product did not play, “He needs to go out there and practice better.”

The 33rd overall pick will need to earn his Sunday snaps during the week.

Foster still not 100%

Arian Foster admitted his hamstring was still not 100% after Sunday’s victory, something that may also have played into his poor performance running the football (8 carries, 6 yards).

Today, O’Brien conceded as much. “Arian…(is) in that day-to-day category. We’ll talk to him every day, see how he feels, and if he’s able to go, he’ll go.”

The coach has been guarded of information regarding Foster so far this season, and today was no exception, and he refused to give any further information on his star back other than, “he’s day-to-day.”

Back to the drawing board?

Coach O’Brien was not happy with his team’s poor performance running the football, and knows the team must improve there to be successful long term.

“We have to look at our game plans and think about what our players do well, and run those types of plays,” the coach said. “We have to start there. We’ve got to be more consistent in how we run the football.”

No vacation at Jerry World

O’Brien said he’s fully aware that the next opponent his team faces is their in-state rival, and all the caveats that go with it.

“I know that this game means a lot to Mr. McNair, to the Texans organization. It means a lot to the city of Houston,” O’Brien proclaimed. “It means a lot to the fans of Houston for us to be able to go out there, play well, and win the game. We understand that.”

Patrick Creighton is the host of “Nate & Creight” on Sportsradio 610 Houston. Follow him on Twitter: @PCreighton1