Justin Fields appears to be developing into the franchise quarterback the Chicago Bears hoped he’d become when they drafted him in the first round last year.The next step is to have some of his big performances translate into victories.The Bears have lost five of their last six games heading into their NFC North matchup with visiting Detroit on Sunday.Fields was named the NFC Offensive Player of the Week after he rushed for 178 yards and a touchdown on 15 carries and passed for three more scores in Week 9. It still didn’t translate in the win column, however, as Miami pulled out a 35-32 victory.Fields has rushed for 408 yards on 49 carries over the past four games and scored a rushing touchdown in each of the last three games.”The main thing is just not forcing big plays, just letting them come to me,” he said. “Of course, I’ve always thought I’ve been able to make the big play. One thing you can’t do is force big plays.”Head coach Matt Eberflus and his staff are trying to maximize Fields’ running ability while emphasizing sliding and getting out of bounds to protect himself.”Our guy is certainly very talented and is able to do a lot of those things,” Eberflus said of Fields being a dual threat. “He’s doing it in a smart way.”The Bears (3-6) need to tighten up their defense to make Fields’ production more meaningful. They have allowed 84 points over the last two games.Chicago didn’t have a sack or force a turnover against Miami.”We’ve got to have creative ways to create pressure,” Eberflus said. “Winning on third down a lot of times is creating pressure to get the quarterback uncomfortable.”Both teams were sellers at the trade deadline. Chicago dealt its top defender, linebacker Roquan Smith, to Baltimore while Detroit sent pass-catching tight end T.J. Hockenson to division rival Minnesota.The Lions (2-6) snapped a five-game losing streak by defeating Green Bay 15-9 on Sunday. They can get out of the division cellar with a win Sunday.