I don't think you could package mason for a RB, especially not as good as the guy trading mason to you did if you accept the deal. I don't like Bush as you will be getting a sweet ppr back in gore. I wouldn't give up both starting RB's, but giving up one isn't out of the question, if you can get Gore in return. Meachum has shown some things in preseason, but factually the guy is still 4th on the depth chart and basically worthless right now in fantasy. I like the moss, bush for Gore williams and something other than meachum.