According to the Post:
Two days before his release, the team let Moses seek a trade partner, which would have allowed him to keep his $7.5 million base salary and give Washington assets in exchange.
But granting that ability to Moses was also an indication the team was likely to move on from him if no deal was made, which could have led prospective trade partners to wait for Moses to be released.
For everything 💛 pic.twitter.com/FBG89jBNHA
— Washington Football Team (@WashingtonNFL) May 20, 2021