This team is loaded at WR. If anything this might force Brady to look harder for open WRs instead of just constantly forcing the ball into his security blanket regardless of coverage.
The best thing about Brady when he was young is that his favorite receiver was the one who was open. He's developed a bad habit of focusing mainly on just a few guys and forcing throws on occasion. Obviously having Edleman is preferable to not having Edleman, but this might be a good thing for the offense to a certain degree. Hopefully Austin Carr can step up and make the team and Mitchell can stop getting injured.