METAIRIE (AP) — Since Sean Payton returned from his bounty ban in January, the Saints have steered clear of scandal or contract holdouts in a blissfully uneventful offseason. With the focus back on football, optimism abounds in the Big Easy.

“Here we are, really for the first time in four years, where you feel like this is a normal offseason,” quarterback Drew Brees said recently. “You come to work every day with no distractions other than just focusing on football and getting better.”

The 2010 offseason was unusual in that the Saints were defending champs. In 2011, there was a lockout. Then 2012 was overshadowed by the NFL’s probe of the Saints’ cash-for-hits bounty system, which resulted in suspensions, fines and lost draft picks. Further complicating matters was Brees’ contract holdout, which ended a couple weeks before 2012 training camp.

Brees still passed for 5,177 yards last season while leading a unit ranked second in yards per game, but such production wasn’t enough to get the Saints back to the playoffs for a fourth-straight season because New Orleans’ defense sank to historically low depths, yielding a single-season record 7,042 yards.

Now that Payton is back, he is refining the prolific offense he created and he’s brought in new defensive coordinator Rob Ryan.

Five things to know about the Saints as training camp arrives:

1) PAYTON’S PRESENCE

Payton’s record speaks for itself. He coached six seasons before his suspension and in that time rebranded the once-floundering Saints as one of the most exciting teams in the NFL. With his offenses regularly at the top of the league and breaking both franchise and NFL records, he led New Orleans to the playoffs four times, to the NFC title game twice and to the franchise’s first Super Bowl title in 2009-10. In his last three seasons before his suspension, the Saints made the playoffs each time, twice racking up 13 regular season wins. In his return, Payton has brought not only his ability to create mismatches with his offensive play design, but also the discipline and intensity to which his players have responded well in the past.

2) DIFFERENT DEFENSE

One of the first changes Payton made upon his return from suspension was to fire 2012 defensive coordinator Steve Spagnuolo and hire Ryan. That meant a change from the 4-3 defensive alignment to the 3-4 preferred by Ryan. The change in scheme has meant a switch in position for several players who once were considered defensive ends and now will play outside linebacker, such as Will Smith and Junior Galette. Players say the adjustment has not been all that difficult because the Saints effectively were in a 3-4 for a number of their blitz packages when Gregg Williams was the coordinator from 2009-11.

3) VETERAN ADJUSTMENTS

As defensive captains Jonathan Vilma and Smith enter their 10th NFL seasons, they are out to prove they can be effective in altered roles. Smith played his first nine seasons at right defensive end. Now he is an outside linebacker, meaning he may have to drop into pass coverage at times. Vilma has been most effective as a middle linebacker in a 4-3. While with the Jets early in his career, he struggled when that club switched to a 3-4. Now he’ll be in a 3-4 again, though Payton has said he believes Vilma can be effective on the weak side, while Curtis Lofton will be the strong side middle linebacker.

4) BREES’ BLINDSIDE

For the past four seasons, Brees’ blind side has been protected by left tackle Jermon Bushrod, who left during free agency for Chicago. The Saints hope 2010 second-round draft choice Charles Brown is ready to step in as a starter. Brown has been injury plagued early in his career, leaving coaches anxious about his reliability. Competing with Brown will be former St. Louis first-round pick Jason Smith, who is hoping to reinvigorate his disappointing career in New Orleans, and 2013 third-round pick Terron Armstead.

5) YOUNG RECEIVERS

The Saints have several young, inexperienced receivers vying for regular playing time behind veterans Marques Colston and Lance Moore. The front-runner appears to be Joe Morgan, who joined the club as an undrafted free agent in 2011 but did not see action in 2012 after spending his rookie year on injured reserve. Nick Toon, a 2012 fourth-round draft pick who also spent his rookie year on injured reserve, and rookie Kenny Stills, a fifth-round pick, also are looking to break into the lineup.

New Orleans Saints football coach Sean Payton. (Associated Press)

Rogelio Solis