Even if Tina was being a diva (as the CT reporter stated), she was not the first. Cappie Pondexter did the same thing to Phoenix after 2009, as she wanted the Mercury to be her team, not "Diana and Cappie's team" or "Diana as 1a and Cappie as 1b." Phoenix got Candice Dupree out of the trade.
I think Conn made out far better than Phoenix. First, Chiney has All Star potential, especially with an expanded shot (which she showed off at times this year). Second, so does Alyssa Thomas, provided she expands her shooting range, uses her mid-range game more, and transitions to balancing having the ball in her hands and being effective when she does not. And Chelsea Gray, once healthy, gives the team a big point guard with some of the best natural passing vision I have ever seen outside of Taurasi and a few others. The team also gets Kelsey Bone, who should be improved working with Donovan and Gillom. Plus, there is another first round pick thrown in for 2015, though it is a weak draft. Still, the Sun have six first round picks in three years (Bone, Chiney, Alyssa, Gray, its 2015 pick, NY's 2015 pick). That should be mroe than enough to rebuild.