The trade that was vetoed really wasn't bad at all IMO. At first glance of the numbers you might think so but no.
Davis vs Griffin: Griffin currently averaging and projected higher but these figures have been skewed by Davis' recent injury. I'd say they hold roughly equal value.
Rubio vs Lillard: Lillard is way better right now but over the remainder of the season that gap would diminish.
Vasquez vs Barea: Vasquez way better long term fantasy player.
Every time I send out a trade I try to make it worthwhile in some way to the other player. Either they need a particular position to strengthen their roster or they lack depth on their team or they need active players over injured ones to compete etc. Every trade I offer there's always SOMETHING in it for the other guy, even if they don't perceive it to be worth it in terms of player exchange.
Apart from metrocard, no one in this league has sent me a trade that actually makes any sense to me whatsoever. Some people offer you trades and when you try to negotiate over it, it becomes clear they were just trying to rape you from the start.
I respect metro a lot as a GM to be willing to give away players who are clearly going to provide a big impact, because he sees things that others don't.
Who else in this league would have the balls to trade Jrue for Kemba? Or throw out Rubio and Davis at very low value? I know I wouldn't take those kinda risks.