For example, when playing as Ud, I immediately made a DK of level 3 and pushed against the Orc with Finds, quickly advancing to Tier 3 for the Orb of Lich. And sometimes I played a more relaxed strategy that doesn't require such intense micro-management – through CL + spiders, Finds, fast experience; it's good because you have a lot of various weak units at the beginning – skeletons, bugs, Finds.
People who play Dota quickly degrade; this has been proven and is already a scientific fact. I personally know many acquaintances from Warcraft who switched to Dota – they all degraded. I'd rather play Footman Frenzy than this garbage, IMHO.