The first day of class for a new teacher and fresh students can be daunting. In the case of Los Angeles Rams coach Brandon Staley and his charges, everything went smoothly.

“I think we were able to establish our way of doing things from a walk-through standpoint,’’ Staley said. “Hopefully, that expressed itself.’’

The Chargers’ fingers are crossed that they have the right man in Staley. He continued his initial steps as a head coach at any level as many of L.A.’s veterans joined the offseason training activities this week.

Staley seemed to be everywhere at once as he acclimated himself to those making themselves available during these voluntary sessions. Pro Bowl wide receiver Keenan Allen connected with the upbeat Staley and came away encouraged by his energy and presence.

“I think it’s big,’’ Allen said. “Especially in having a new coach, you want to start to gain trust and you want to believe in somebody you can trust and feel like you’re going to fight for.’’

The Chargers are battling to get back into the playoff hunt after going 12-20 in their last two seasons which cost Anthony Lynn his job. L.A. didn’t have to look far for Lynn’s replacement as Staley directed the Rams’ defense last season, a unit which was ranked No. 1 in the NFL.

That’s impressive, but players like to judge coaches on their terms. They’re eager to learn if he can lead men, can command a locker room and if he doesn’t get knocked over with the winds of adversity blow.

It appears Staley, 38, is the man who can check off those boxes as the 17th head coach in franchise history. Still, there’s a feeling-out process that is in its early stages.

Allen isn’t known for blowing smoke just to have someone hear what they want. He’s a straight-shooter who can keenly run crooked routes and he’s honest with his observations.

So when Allen gives Staley an early thumb’s up, his thoughts don’t go unnoticed.

“The way he talks, it’s just giving us the confidence that we can go out and play for a coach who is going to lead us in the right direction,’’ Allen said.

The Chargers’ compass seems pointed toward a desirable destination. L.A. won its final four games last season and has impact players on both sides of the ball.

Quarterback Justin Herbert is a rising star, with a standout target in Allen. Defensive end Joey Bosa, a three-time Pro Bowler, paces a defense that welcomes back a healthy All-Pro safety in Derwin James, Jr.

Now the Chargers have an enthusiastic and cerebral young coach in Staley as they prepare to play before fans for the first time this season at the $5 billion Sofi Stadium they share with the Rams.

That’s the team in which Staley earned his stripes to become a head coach after just four years in the NFL and one as a coordinator. If that has Staley pinching himself on occasion, so be it.

“All I’ve every dreamt of is doing exactly what I’m doing,’’ Staley said. “When I wake up, there’s a lot of purpose to what I’m doing. I hope that expresses itself to the players. I’m trying to be as good as I can be for them.’’

So far, so good in Allen’s eyes..

“He talks with passion, energy and confidence,’’ Allen said. “I’m excited.’’