Scott Linehan and Rod Marinelli are officially locked in for the future with the Dallas Cowboys.

On Tuesday, the club went to work making sure key drivers of their recent success sat tight for the foreseeable future. After signing tight end Jason Witten to a four-year extension, the Cowboys also inked their two coveted assistant coaches to extended stays as well.

Per Fort Worth Star-Telegram, the new deals extend through the 2019 season.

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The team went 12-4 in Linehan's first year with the club, which saw them make a marked improvement offensively across the board. They'd stumble mightily to through a 4-12 season in 2015 that was marred with injury to quarterback Tony Romo and other key positions before bouncing back with a historic 13-3 campaign last season.

The 2016 campaign saw rookie Dak Prescott ascend from a fourth round pick to 2016 NFL Offensive Rookie of the Year while fellow first-year compatriot Ezekiel Elliott rushed for a franchise rookie record 1,631 yards and an NFL record 15 touchdowns, and in a year that was predicted to circle the porcelain bowl after Romo went down in August.

Impressive, to say the least.

Marinelli joined the Cowboys in 2013 and was promoted to defensive coordinator the very next year, joining Linehan in helping head coach Jason Garrett remold the team into what may see today.

The Cowboys' defense went from the worst in NFL history to one that overachieves without breaking the bank for big name free agents to make it all work. While there are certainly needs that still must be met going forward to shore up the defensive front, what Marinelli has accomplished has been nothing short of masterful.

It's no wonder the Cowboys are looking to lock both of them up long-term before the hounds of the other 31 NFL teams come sniffing around.

Financial terms of the deals remain undisclosed at this time.