TUCSON, Ariz. -- Parker Jackson-Cartwright took over as starting point guard for Arizona this season.Hes handled the takeover as well as he handles the basketball.Jackson-Cartwright had 15 points, a career-high 11 assists and one turnover in 34 minutes in the eighth-ranked Wildcats 71-55 victory over Northern Colorado on Monday night.Tonight was Parkers best game at Arizona, in my opinion, Wildcats coach Sean Miller said, because everything he did was important..Over the past two games, Jackson-Cartwright had 15 assists and one turnover.I was just ultra-aggressive, he said. My teammates give me confidence every day, in practice and in games. I was just doing what my coaches told me and feeding off my teammates energy.Lauri Markkanen scored 17 points and Kadeem Allen 10 for the Wildcats (4-0).Jordan Davis scored 20 for the Bears (1-3). Chaz Glotta, a transfer from Southern Illinois, made 5 of 11 3-pointers for 15 points.Northern Colorado is in a tough stretch to start the season.We started the season at Butler, we are on the fourth day of an eight-day road trip, first-year coach Jeff Linder said. We get back Saturday and travel out to Norman, Olaying teams like Arizona, even though were not into moral victories, prepares our guys to win.The Wildcats outscored the Bears 34-16 over the final 12:15.But most of the night, Northern Colorado -- picked by coaches and the media to finish near the bottom of the Big Sky Conference -- gave the Wildcats all they could handle.Northern Colorado bothered the Wildcats most of the night with a tight 2/3 zone defense.Its the first time this years team has really gone against a zone, Miller said. That first time you really rely on your older guys and, unfortunately for us, we have a ton of new faces, so we had a deer in the headlights look.The Bears were up 31-30 at the half and Glottas 3-pointer put them ahead 39-37 with 14:11 remaining.But Jackson-Cartwright drove inside, was fouled and converted the three-point play that put the Wildcats ahead for good, 40-39, with 12:15 to go. The play ignited an 11-2 run, capped by Markkanens two free throws that gave Arizona a 48-41 lead with 9:25 to go.The Bears twice cut it to four before Arizona pulled away.Neither team led by more than four points in the first 20 minutes.Markkanens soaring tip-in of Parker Jackson-Cartwrights miss just before the buzzer cut the Bears lead to 31-30 at the break.BIG PICTURENorthern Colorado: The Bears look a lot better than was forecast with the tough zone and could cause trouble in the Big Sky.Arizona: The young Wildcats got a taste of what they well could face in Pac-12 play when they faced the zone defense. After struggling against it mightily, they finally figured it out to make the final score more one-sided than the game actually was.TRIER MYSTERYStill no word on why Allonzo Trier isnt playing. The sophomore guard, a member of the Pac-12 all-freshman team last season, sat near the far end of the bench in sweat pants during Monday nights game.The university has declined to comment on why Trier hasnt been in uniform.HIBERNATING BEARSThe two leading scorers from last years Northern Colorado team are sitting out the season as redshirts. The move came as the school issued voluntarily banished itself from postseason play this season for undisclosed rule violations. No word on whether the NCAA will isssue additional penalties.UP NEXTNorthern Colorado: The Bears play Sacred Heart in the Las Vegas Classic on Wednesday.Arizona: The Wildcats also head to the Las Vegas Classic, facing Santa Clara on Thursday night. The winner faces winner of the Butler-Vanderbilt game. Scarpe Air Max Thea Scontate . Its an influence in football and a big part of the game. 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Subscribe today!WITH NFL TEAMS firing offensive coordinators almost as frequently as the Raiders commit penalties these days, I have some advice for teams looking to amp their scoring: Add more play-action to your repertoire.Yes, the trend in todays game is for quarterbacks to get rid of the ball quickly, not to take extra time to fake a handoff before passing. This season starting QBs are spending two seconds or less in the pocket on 37.4 percent of their attempts, a figure that has jumped by more than 5 percentage points in just the past four years. As Ive written before, thats understandable and even laudable, given the trouble so many clubs are having developing cohesive offensive lines. But the numbers are loud and clear: Misdirection still pays.QBs threw for 9.23 yards per attempt on play-action through Week 9 this season, compared with 6.9 ypa on all other passes, according to ESPN Stats & Information. Thats a huge gap. ?Its the difference between Tom Brady and Marcus Mariota! Further, play-action passes lead to first downs on 44.3 percent of completions, versus 33.3 percent for non-PA, and result in fewer sacks despite QBs holding the ball longer (5 percent of dropbacks, versus 5.6 percent). Essentially, play-action is a way to grab extra rewards without incurring extra risk.Since Hank Stram pioneered the tactic some 50 years ago, several pairs of innovative coaches and cerebral QBs have elevated play-action to an art form: Stram and Len Dawson, Bill Walsh and Joe Montana, Sam Wyche and Boomer Esiason, Pete Carroll and Russell Wilson. But many teams cling to traditionalist beliefs that prevent them from taking full advantage of it.For some, the pure pocket passer is the beau ideal of quarterback play, and once a QB has established a high level of standard performance, its almost as if he shouldnt need to resort to anything so gimmicky. Other clubs still think you have to run to set up the pass and will use play-action only if they are already confident in their rushing game. Indeed, as Football Outsiders pointed out in July, four of the five teams that ran most often last season (as a percentage of plays) were also among the half a dozen that deployed play-action the most.?But analytics long ago debunked the idea that you need to run to set up the pass-and besides, even the worst teams in the leeague rush more than 20 times a game, so you especially dont need to run to set up fake handoffs.dddddddddddds far as I can tell, then, too many coaches call play-action by rote rather than looking at data to see whos actually effective at it. An extreme example: The Chargers have gone to play-action on just 10.3 percent of Philip Rivers pass attempts since the start of 2012, even though over that span he has hurled 22 TDs with just six picks on play-action and his completions have traveled 37 percent farther, on average, than his other throws. Overall, there is actually a slightly negative correlation between how often NFL teams use play-action and how well they use it (as measured by improvement in ypa): minus-0.19, on a scale of minus-1 to 1. ?Now, play-action is based on faking out the opposition. So if you use it more frequently, wont its effectiveness decline? Well, yes. Eventually, defenders will stop biting on false handoffs, and linebackers will keep clogging the middle of the field rather than rushing toward the line of scrimmage. But until the advantage of play-action erodes completely, it makes sense to keep trying. A team hasnt optimized its offense until the gains from various play types are equal-until theres no reason to switch from one to another.?Relentless play-action wouldnt suit every team-it does require an offensive line that can hold blocks and a QB with a deep touch. But I think Buffalo should consider it. Last year Tyrod Taylor crushed it on play-action, connecting on 69.5 percent of passes for a whopping 18.6 yards per completion, second in the league. This season offensive coordinator Greg Roman was running PA on 23.1 percent of Taylors pass attempts, but since replacing Roman after Week 2, Anthony Lynn has cut Taylors play-action usage by a third. Free Tyrod Taylor!I also think were sure to see Seattle bootleg and bomb a lot more off play-action in the second half of this season. Recovering from injuries, Wilson has gone to play-action on just 15.4 percent of passes this year, by far the lowest rate of his career. But when hes on his game, defenses literally cant believe their eyes. And the last time the Seahawks led the league in play-action, using PA on 34 percent of their passes in 2013? They won the Super Bowl. ' ' '