I confess I'm going off second hand reports. I haven't seen Maryland play.
However, from all reports, they have no OL. That's a huge problem, because, when run right, Todd Orlando's defense makes a QB's life really tough.
Modern collegiate offenses are supposed to account for the defenders, do the math, then strike where the largest likelihood of success is. Orlando's defense puts, like, 2 players in a static position. The other nine are part of an ever changing array of edge rushers, LB/DE combos, and secondary players that don't declare their role until after the snap - sometimes even reneging on their declaration during the play!
In short, players come from everywhere at any time. The QB and receivers just have to adjust on the fly. The constant pressure makes that adjustment time limited, and a mistake goes the other way.
Texas Offense will put out a lot of speed, but I'm expecting growing pains. Regardless, they may not have to score much.