Re: If you were the Raps GM...
If you are trying to win now for some misguided reason, you keep Kyle Lowry given that he's probably the most productive player on the team. You're not going to get anyone better than him unless you're trading Valanciunas.
For a "win now" situation, you are looking at trading the 2014 pick, Ross and maybe Amir. You probably keep Valanciunas and Lowry. You aren't getting anything of value for anyone else.