They went out and signed Randall Cobb, the veteran receiver who made his name in the slot for the Green Bay Packers. They then drafted Memphis running back Tony Pollard in the fourth round to add a versatile weapon to their offensive backfield.
Archer named Tavon Austin the veteran most likely to be cut by the Cowboys, and roster math does somewhat point to this prediction coming true. If the Cowboys were to only take 5 receivers, as ESPN is suggesting in their latest roster projection, then it's hard to see a perfect spot for Austin.
Amari Cooper and Michael Gallup are complete locks. Randall Cobb is about as close to a lock as you can imagine. That leaves two spots for a lot of talented players, including Austin, Noah Brown, Allen Hurns, Lance Lenoir, and Cedrick Wilson.
It's certainly possible, and more than likely, that the Cowboys go with more than just 5 receivers however. This way they can keep a young hopeful like Wilson around while still maintaining the explosiveness that Tavon Austin can bring them in 2019.
Of course, the Cowboys are not afraid to cut veterans. Just last year we saw Dan Bailey get the axe after training camp, and Dez Bryant get released prior to any offseason activity even began. Tavon Austin is still of cheap value to Dallas, however, and when healthy he was an impressive weapon both on offense and special teams in 2018.
I actually do expect Tavon Austin to survive final cuts in Dallas, mostly because I anticipate they keep more than just 5 receivers on the roster.