Rational implementation is what we need more of. I wouldn't say planning is the "wrong kind of thought process". I'd say we have an abundance of planning tactics and a shortage of implementation tactics. Once you decide how to deal with your in-laws, how do you stay cool enough to actually do it?

The numerous posts on Akrasia are a big step in the implementation direction, though. We could use more vivid classifications of implementation problems like that, and techniques to deal with them.