When I split big methods (or procedures, or functions — this question is not specific to OOP, but since I work in OOP languages 99% of the time, it's the terminology that I'm most comfortable with) into a lot of small ones, I often find myself displeased with the results. It becomes harder to reason about these small methods than when they were just blocks of code in the big one, because when I extract them, I lose a lot of underlying assumptions that come from the context of the caller.
