Crayton, who sought a release following April's NFL draft -- when the Cowboys selected Dez Bryant in the first round -- backed off when training camp started.
"Why wait?" Lyles said after the Cowboys' final preseason game Thursday night. "It is clear the direction in which the organization is moving in. Crayton is not part of the rebuilding plans."
Crayton remained unsure about his future following the Cowboys' 27-25 win over the Miami Dolphins.
"You always wonder what it is," Crayton said about his status on the roster. "I don't know what's going to happen, though."
The Cowboys have shopped Crayton but are concerned that an NFC East rival will sign him if he's released.
In six seasons, Crayton has 196 catches for 2,888 yards and 23 touchdowns in 82 games, including 33 starts. He has become a trusted veteran for quarterback Tony Romo.
The Cowboys also are considering cutting or trading Hurd.
"We'll look at all of that," Cowboys owner and general manager Jerry Jones said. "We think the world of them as individuals and think the world of them as players. Seriously. I'm not, and wouldn't, get into any decisions we're going to make regarding our 53."