Soon enough, the Redskins will have new class of rookies, like Trent Murphy last season, to break in. The team also needs a linebackers coach to replace Brian Baker, left. (Richard Lipski for The Washington Post)

With the Super Bowl now in the books, the NFL’s 2015 offseason officially gets underway.

The Redskins already have begun making preparations for the offseason, but the work continues. General manager Scot McCloughan and his scouts continue to compile scouting reports on prospects and rank players in preparation of passing their findings on to Jay Gruden and his assistant coaches.

Gruden also should be finalizing the hirings of Joe Barry’s assistants; Washington still needs a defensive line coach and outside linebackers coach.

Here are the key dates from now through this spring’s NFL draft:

● Feb. 2: NFL waiver system begins.

● Feb. 16: – First day clubs can designate franchise or transition players.

● Feb. 17-23: NFL Scouting Combine (Indianapolis).

● March 2: Deadline (4 p.m.) for teams to designate franchise or transition players.

● March 7: Free agent negotiation period begins at 4 p.m.

● March 10: The 2015 league year begins at 4 p.m. Teams must be under the salary cap by the start of the league year. Free agents can sign contracts with new teams. Clubs must exercise options for 2015 on all players with option clauses on 2014 contracts.

● March 22: Veteran free agent combine (Phoenix).

● March 22-25: NFL Annual Meeting (Phoenix).

● April 6: Clubs with new head coaches can begin offseason programs.

● Mid- to late-April: Dates for 2015 regular season games will be released. The 2014 schedule came out on April 22, and the 2013 schedule was released on April 18.

● April 20: Clubs with returning head coaches (the Redskins included) may begin offseason workout programs.

● April 24: Deadline for restricted free agents to sign offer sheets.

● April 29: Deadline for clubs to exercise right of first refusal to restricted free agents.

● April 30-May 2: NFL Draft (Chicago).

● May 15-18: Teams can hold three-day rookie minicamp.

More from The Post:

First and 10: Play call that changed it all, Falcons hire Quinn & more

Fancy Stats: In defense of the call | Kilgore: Belichick’s wise move

Pats’ future: DeflateGate, Revis’s free agency | Best of the Super Bowl

Bog: Roberts wants NFL players to strike? | Griffin on being a target

More NFL:  Home page | Sports Bog | Early Lead | Fancy Stats | Fantasy

Follow:  @MikeJonesWaPo | @lizclarketweet | @JReidPost | @Insider