ASHBURN, Va. — Enough winning ingredients are available that the Washington Redskins are legitimately surprised to be 1-5.

“Personally, it’s frustrating,” said DeSean Jackson, who bemoaned winning the NFC East with Philadelphia last season only to be “on the opposite end on a different team” in 2014.

Frustrations are commonplace in the Redskins’ locker room. There are players performing at or above expectations.

Washington added a big-time playmaker in Jackson, who has four of the team’s six plays of at least 40 yards and an NFC-best 20.8 yards per catch). The Redskins feature a relentless pass rusher in Ryan Kerrigan (6.5 of the team’s 15 sacks) and a new punter, Tress Way, who leads the league with a 51.2-yard gross average.

However, six games into the season it’s very evident that the 1-5 Redskins have a longer list of shortcomings.

They are not generating turnovers. Arizona forced as many in the fourth quarter – three interceptions by quarterback Kirk Cousins and a fumble by ex-Cardinals receiver Andre Roberts — in its 30-20 victory Monday as Washington has forced in six games.

“It’s not one thing, it’s a smorgasbord,” frustrated first-year coach Jay Gruden said after the loss to the Cardinals, which he briefly wasn’t sure if it was the Redskins’ fifth or sixth of the season. “We’re not getting enough of anything. … We were just unable to convert and make plays. The team that makes plays usually wins. The team that doesn’t turn the ball over usually wins. The team that creates turnovers usually wins. It’s a broken record every time I stand up here.”

The Redskins are not getting to the opposing quarterback consistently. Take away the franchise record-tying 10 in the Week 2 rout of hapless Jacksonville and Washington has just five in its other five games.

Third downs remain a struggle. After going 2-for-10 on third down Sunday, the Redskins are not clicking; they own an NFC-worst 32.4 percent rate.

Scoring points, especially in crunch time, is no given. The Redskins have scored 20 or fewer points in four of their six games and have produced just 58 points in 180 minutes after halftime.

Most of the time, running Alfred Morris is responsible for making his own hole to run through. The NFL’s second-leading rusher in 2012-13 managed just 70 yards on 26 carries in the losses to the Cardinals and the reigning Super Bowl champion Seahawks — who were shocked at home Sunday by Dallas — over the last week.

That’s one negative stat for each defeat for a team that’s firmly back in the NFC East basement for the sixth time in seven seasons.

“If I was a quarterback playing the Washington Redskins, I’d rush back to play, too,” safety Ryan Clark said after Arizona’s Carson Palmer successfully returned from a three-game absence. “(We) aren’t making the plays to win football games. Their defense, when faced with the opportunities to make plays, to help their team win the game, they did. Defensively, we didn’t. That’s indicative of a losing football team.”

Losing is becoming habit. The Redskins are on a run of 12 losses in 13 games dating to last November, and the only victory came in Week 2 over winless Jacksonville. Washington absorbed its ninth straight defeat on the road in Sunday’s game at Arizona.

NOTES: DE Stephen Bowen and WR Leonard Hankerson, each of whom has been on the physically unable to perform list all season while recovering from knee surgery, will return to practice this week. Washington will have three weeks to decide whether to activate either player or place them on season-ending injured reserve. … Coach Jay Gruden said CB David Amerson (head injury) would enter the NFL’s concussion protocol before being cleared to return and play Sunday. The Redskins are thin at the position. CB Tracy Porter was inactive against the Cardinals with a chronic hamstring injury that has limited him to one game this season and DeAngelo Hall is out for the season.