What the Dallas Cowboys have done so far this offseason

• Now several of the team's stars are signing elsewhere, while Dallas appears hamstrung by salary cap limitations.

The latest: Starting running back Tony Pollard took a three-year deal with the Tennessee Titans, leaving second-year back Deuce Vaughn — the shortest player in the league — as their top running option.

• Vaughn, who was a highlight machine at Kansas State, compiled a total of just 80 yards last season.

Yes, but: Fans hoped this might mean the Cowboys would sign former Titans running back Derrick Henry — but he just committed to the Ravens.

Plus: The team hasn't re-signed star offensive tackle Tyron Smith — who's being targeted by the Super Bowl-champion Chiefs — and gave wide receiver Michael Gallup permission to seek a trade.

Meanwhile: Every other team in the Cowboys' division signed a big-name free-agent running back.

The big picture: Unless the team extends quarterback Dak Prescott's contract, his salary-cap hit this season is close to $60 million, nearly a quarter of the team's total allotted expenditures.

• If receiver CeeDee Lamb's contract isn't extended, he's owed $17 million — leaving very little to sign free agents.

What we're watching: This financial conundrum could pave the way for the return of beloved veteran running back Ezekiel Elliott.