WR Cole Beasley will be a key player for Dallas to re-establish what it's calling a "Dak-friendly" offense. In the slot in 2016, Beasley epitomized that role as the line protected for Prescott and Beasley grabbed underneath balls when Dak Prescott didn't hand off to Ezekiel Elliott. Now, Beasley's working on expanding his route tree under new receivers coach Sanjay Lal.
The story said Dallas plans to shift several receivers across different positions with routes similar that Prescott will know where they're going regardless of who he is targeting. It's likely going to be a receiver by committee approach with Dez Bryant released and Jason Witten retiring.