EDEN PRAIRIE (AP) âÄî Out with the new, in with the old. With the passing offense sputtering in two losses to open the season, Minnesota coach Brad Childress decided the Vikings can no longer afford to let 25-year-old quarterback Tarvaris Jackson learn on the job. On Wednesday, Childress turned to 15-year veteran Gus Frerotte to run the offense for the rest of the season. âÄúIâÄôm just not seeing right now the aggressiveness from Tarvaris that I saw throughout the offseason, training camp, the two preseason games that he played in,âÄù Childress said. âÄúAnd part of it may be experience. I know Gus will give us that. And I know his approach will also lend itself to that.âÄù Jackson completed just 51 percent of his passes this season. He threw a game-ending interception at Green Bay that sealed the Packers victory and was partly responsible for the offense settling for five field goals and scoring no touchdowns in an 18-15 loss to the Colts. âÄúI know thereâÄôs many other plays, thereâÄôs a lot of other people that have to step up,âÄù Childress said. âÄúBut then when you go back through and look at the tape, and most importantly to be able to sit across from the young man and want to be able to verify what youâÄôre feeling âÄî itâÄôs kind of like looking in your kidsâÄô eyes and saying one (thing) and feeling another.âÄù ItâÄôs an abrupt and drastic move for a team that entered the season with sky-high expectations after spending $60 million in guaranteed money to position itself as an NFC contender. Only two weeks in, the Vikings already are two games behind NFC North-leading Green Bay with games against Carolina, at Tennessee and at New Orleans coming up. âÄúWeâÄôre 0-2 right now, and the key thing, probably one of the reasons Coach made the decision, was maybe because we need to get something to get us over the hump to get us a win,âÄù the 37-year-old Frerotte said. Jackson admitted to âÄúinconsistent play to say the least,âÄù but also said he was surprised and upset by the move. âÄúI could easily hold my head low, keep my head down, you know, be a cancer to the team,âÄù Jackson said. âÄúIâÄôm still frustrated and mad about the situation, but IâÄôm going to use that as motivation to try to get better and just better myself for the future.âÄù The passing offense has struggled mightily through the first two weeks, not only with JacksonâÄôs accuracy, but also with receivers dropping passes and conservative play calling.