Orrick varsity 8-man football coach Kirk Thacker and his Bearcats are defense-oriented for this week’s team camp. The Bearcats are installing a new defense during camp, slated to conclude Friday, according to Thacker. It’ll feature a safety and some blitzing, he said. “We want to be … more of (an) attacking defense this year,” Thacker said Monday morning at Orrick’s practice field. “Last year, we were more a read-and-react defense. We want to be the attacker; we want to be the aggressor this year.” Thacker and assistant coach Chase Sims looked to Iowa to develop their system. “A lot of teams in Iowa play it, a lot of Missouri teams don’t, so we’re hoping to sneak up on some people … a little bit,” Thacker said. Sims is teaching the Bearcats their responsibilities in the new defense. He likes the progress he’s seeing from them. “We don’t have our full … body (of athletes) here at the moment,” Sims said Monday. “There’s some family stuff going on for some of them – some personal…