Changing one's mind # lack of integrityAgreed! Some might argue that by definition, taking *any* new opportunity involves apparently "changing your mind." In which case it might be more productive IMHO to focus on the opportunity and the outcome, not the mechanics.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1