FRISCO, Texas -- Dallas Cowboys coaches -- those who remain, anyway -- are set to return from vacation next week, and at some point they will head to Mobile, Alabama, for the Senior Bowl.

At the moment, the Cowboys need a tight ends coach, a linebackers coach, a secondary coach, a special-teams coordinator, a wide receivers coach and a quarterbacks coach. The front office and head coach Jason Garrett might already know who will fill some of those roles and just aren’t saying.

So let’s lay out what has happened to the staff since the season ended, and what might happen next:

WHO'S OUT?

Special-teams coordinator Rich Bisaccia -- Despite being under contract and putting together a good unit the past few seasons, he was allowed to leave by the front office and join Jon Gruden with the Oakland Raiders. Bisaccia is respected across the league and desires to be a head coach one day. Getting back together with Gruden could help him.

Linebackers coach Matt Eberflus -- He is expected to be Josh McDaniels’ defensive coordinator wherever the New England Patriots' offensive coordinator lands a head-coaching job (Indianapolis Colts, cough, cough). He was elevated to passing-game coordinator in 2017 and was a key part of the coverage schemes the Cowboys used. He devised their dime package a couple of years ago. He bet on himself last year, choosing not to sign an extension with the Cowboys in hopes of becoming a coordinator in 2018.

Wide receivers coach Derek Dooley -- He would have been back with the Cowboys in 2018 but was able to land the offensive coordinator job at Missouri. This move allows him the chance to get back on track to being a head coach one day.

Offensive line coach Frank Pollack -- With Pro Bowlers Tyron Smith, Travis Frederick and Zack Martin on his unit, his job did not appear to be on the line after the 2017 season ended. But a change was made, anyway, even though he remained under contract. He ended up as the line coach with the Cincinnati Bengals.

Quarterbacks coach Wade Wilson -- The longest-tenured assistant under Garrett (2007-17), he was Dak Prescott’s first backer on the staff prior to the 2016 draft. His contract expired, and he was told he would not return.

Secondary coach Joe Baker -- He was told his contract would not be renewed. While he incorporated almost an entirely new secondary in 2017, the fact that the players the Cowboys let walk in free agency -- such as Barry Church, Brandon Carr and Morris Claiborne -- played better elsewhere did not help his cause.

Tight ends coach Steve Loney -- He chose to retire after one season in his position, ending a coaching career that began in 1974.

WHO'S IN?

Offensive line coach Paul Alexander -- He spent 23 years as the Bengals' line coach and was able to put together some solid running game and pass protection schemes. He inherits what will be the best group he has coached and will be in charge of improving the pass protection while keeping the run game top notch. Over the years, he has changed his blocking scheme depending on the talent he has had.

Running backs coach Gary Brown -- Sources say he is expected to return for his sixth season. He had interest from the Raiders and Houston Texans. He has had success with DeMarco Murray, Darren McFadden and Ezekiel Elliott since joining the Cowboys. He has also developed Keith Smith from a linebacker to a fullback and Rod Smith as an effective third-down back.

Sanjay Lal -- A source said Lal will be the receivers coach after interviewing for the position last week. Miles Austin also interviewed for the spot and could be considered for another role on the staff, but Lal’s experience gave him the edge. The key question for the Cowboys and whoever coaches the receivers will be Dez Bryant’s future with the team.

WHO COULD BE IN?

Kellen Moore -- After spending most of last season on the practice squad, he has interviewed for the quarterbacks coach job, and his close ties to Scott Linehan help his case. He has always been viewed as a coach-in-waiting. Considering that Linehan effectively runs the quarterback room as coordinator, it will allow Moore a chance to grow as a coach.

Keith O’Quinn -- He has served as Bisaccia’s assistant since 2014. He has experience in coaching on both sides of the ball and comes from a scouting background. Considering how a special-teams unit is put together, the coach has to have an understanding of every level. The special-teams coordinator also has to work closely with Garrett. O’Quinn’s experience on the staff helps.

John Pagano -- He is scheduled to meet with the club over the next few days. He ended last season as Oakland’s defensive coordinator, taking over for Ken Norton Jr. He has been an NFL assistant since 1996 and has extensive work as a linebackers coach, which is a sign the Cowboys are preparing for life without Eberflus. Pagano has experience in 4-3 and 3-4 systems and could be a solid resource for defensive coordinator Rod Marinelli.

Ray Horton -- He won a Super Bowl ring with the Cowboys in 1992 as a defensive back and was considered for Garrett’s staff back in 2011. He was out of football last season after serving as Cleveland Browns defensive coordinator in 2016. While the Cowboys would like Greg Jackson to return to help the secondary, Horton has a lot of experience.