Look at it this way, in my opinion, Lloyd will have an absolutely amazing year. He has posted great numbers with sub-par QB's, plays outside the numbers - which is something Brady excels throwing at, is a honest deep threat, and well... has Brady throwing to him. I know NE has numerous offensive threats, but I believe with great confidence he will amaze people this season.
That being said, consider this my friend:
Brees is amazing. I mean, he is really up there with the elite. On top of that, he just received a very generous contract that he will not have to worry about for 5 years, meaning his performance will be pure. Brees will keep you so happy.. BUT... so will Tom Brady.
So here's the little kicker I want you to think about. Brees for Brady is a toss up. Lloyd for Thomas is another story.
If you keep Brees, you still get the points Lloyd will produce with Brady. So have your cake (Brees), and eat it to (Lloyd).
Just my opinion but I hope I helped.