Here's Baseball America's rundown of the three players acquired by Houston.
Singleton has a pure stroke with strength in his swing and isn't afraid to go deep in counts to go with above-average raw power. He's more of a hitter than masher at this stage, and will have to identify spin to improve at higher levels, especially against lefthanded pitchers (.189/.339/.232, 0 homers).
He has good life on his fastball but needs to improve his fastball command. His curveball is a true power hammer that can be a plus pitch when he commands it, and he has improved his changeup to the point where some scouts consider it superior to his curve.
And even Baseball America has to do some background work on Zeid.