From James Edwards:
Bey’s value around the league wasn’t very high to begin with. Multiple league executives whose teams inquired about Bey told The Athletic in recent weeks that Detroit’s asking price for Bey was too high leading up to the deadline when factoring in his inconsistencies on offense and defensive deficiencies. None who spoke to The Athletic were willing to give up anything of significance to land Bey. Additionally, per league sources, Bey, who has one year left on his rookie deal after this season, was seeking a decent contract extension.
On the floor, Bey’s style of play was starting to wear on some in Detroit’s organization. He did have the ability to score in bunches, and did so often, but his shot selection and, at times, tunnel vision went against what the team wanted to see from him as a player. The Pistons wanted Bey to do more by doing less. Bey was interested in expanding his game. Bey’s most efficient season came his rookie year when he was primarily a catch-and-shoot weapon. Since then, when he’s dabbled in self-creation more, his efficiency has dropped significantly. Bey hasn’t had an effective-field-goal percentage greater than 50 since his rookie year.