There were many writers, scouts and opposing players that made similar comments to mine about Dez' limited route tree. Word was out that he rounded off his routes badly and failed badly to get the kind of separation that he sorely needed to make him an accessible target. Enough so, that Dak was reluctant to take too many chances to go his way, Enough so, to incite him into throwing tantrums on the sidelines.
Whatever the cause of his troubles to get free of his coverage was seen as, it became a lingering curse in the last few years of his time with the Cowboys. The drops, especially in his final year, turned out to be the cherry atop the cake, leading to his release. The recurrent tantrums certainly didn't help his cause, either. Whether Stephen decides to welcome him back into the fold remains to be seen. Let's hope he proves he deserves it first.