Accuracy isn’t just a required trait for a successful starting quarterback in the NFL. It’s also a prerequisite for NFL teams when trying to target their next successful starting quarterback of the future. Recent history would suggest that the Cardinals and their current starter, Blaine Gabbert, have both been hit and miss in that department. Gabbert will make his fifth consecutive start on Sunday when the Cardinals (6-7) meet the Washington Redskins (5-8) at FedEx Field and his accuracy issues have been well documented in going 2-2 thus far. He knows he has to throw cleaner passes to his receivers and cut down on the interceptions as he nears the end of his ongoing audition for a possible contract next season and beyond. The Cardinals are aware they have to better hit their mark, too, when evaluating, drafting, signing and trading for the next potential quarterback to lead the franchise. Since they opened University of Phoenix Stadium in 2006, they’ve hit on a couple of touchdowns (Kurt Warner, Carson Palmer) and have had more than their share of underthrown flops (Matt Leinart, Kevin Kolb, Derek Anderson, John Skelton, Ryan Lindley, Logan Thomas). As important as winning consecutive games in a row for the first time this season, which could keep their minuscule playoff hopes alive – but probably not – Arizona needs to know for certain what it has in Gabbert, the seven-year pro who is in his seventh different NFL offensive system.