Yeah, its a mass. That's the ONLY way melee seems to go now a days with all the RIPPED off SUCK ASS rip offs of the good old fashioned SD maps of yore.
For Protoss use Dragoons. Both air and ground, slow, but enoguh of them up'd, they are good. Just like the Hydra mass.
If you're playing like Blizzard wanted you to = blizzmaps, then you have to micromanage a lot of casters. They work very well.