Cole Beasley’s latest social media excursion puts a voice to his frustration and sets up an interesting start to free agency in seven weeks.Is Beasley a slot receiver forced to toil in a Cowboys offense that doesn’t fully appreciate his gifts? Is his impact muted by a scheme that emphasizes the run and unreasonably limits his opportunities to contribute?Will these slights be recognized and corrected once he hits the open market?Beasley is banking on it.A debate over Beasley’s value goes beyond the athlete’s ego.