Could the Cowboys get cornerback help sooner than expected?

The Cowboys’ cornerback depth may soon get a much-needed boost, with Josh Butler’s rehab progressing ahead of schedule and rookie Shavon Revel making solid strides. Revel, the team’s third-round pick, says he’s moving well and working closely with the training staff. Still, key questions remain about the readiness of both players and what their availability will mean for the secondary early in the season.