IdrA, member of the Korean team CJ Entus (also knows as "Almost Brad Pitt"), arguably the best non-Korean StarCraft palyer, if you don't count that he is living and training in Korea, was interviewed by fnatic a couple of days back, here's an interesting quote:
You were of course a Zerg player initially, why did you change races?
Ret and Skew are mostly to blame for that I think. When I was in [TmG] and then [Media] I played them zvt over and over, and I played a very lair focused, macro oriented style, and it just didn't work vs them because their macro was too good. I had always played terran vs zerg because I didn't like zerg vs zerg, so I gradually began to switch over entirely out of frustration.
Ret and Skew are mostly to blame for that I think. When I was in [TmG] and then [Media] I played them zvt over and over, and I played a very lair focused, macro oriented style, and it just didn't work vs them because their macro was too good. I had always played terran vs zerg because I didn't like zerg vs zerg, so I gradually began to switch over entirely out of frustration.
If you are interested in reading the rest of it, and you should be, as it's pretty interesting and clearly worth the time, follow the link at the bottom of the page.
Links
Fnatic.com - IdrA Interview