Was this a decent trade?

Decent? That is a good trade. Berkman is on your bench and Weaver and Greinke is way better than Cano and Holland. Cantu is a good replacement for Cano or you can even put Young at 3rd and somebody else at Utility. You're pitching sucks. The only thing that concerns me is he will have to drop somebody and he won't be too happy with that. But you need the pitching so do it. You can also pick someone off waivers.