What are Captain Pike's flaws?

I was thinking this the other day. The other captains have their various well-telegraphed flaws: Archer naive and righteous (particularly after the Xindi); Kirk tends to be gung-ho and violates rules (the man was a menace); Picard can be remote and closed-off to all but his close crew; Sisko tends to get angry and ends-justify-the-means'y ("he CAN live with it"); Janeway inconsistent and unpredictable. Etc etc. But what are Pike's flaws? The only thing I can think of is maybe too introspective? Welcome your thoughts!