A good summary.
And while Pablo and Hanley were bad cotnracts, even the best GMs make bad signings. Epstein certainly had his share of free agent clunkers in Boston, and even a few in Chicago. But that is more the nature of paying heavily for post-prime talent, which is the essence of free agency.
Sometimes I think people focus on the dud post-prime, overpriced, unproductive free agent that a GM acquires as a problem because he is a hindrance to acquiring another dud post-prime, overpriced, unproductive free agent. This is like getting upset with someone for taking arsenic because you really wanted them to take your cyanide...