You really think Manny would have come here, be on a 100 loss team and be like "you know what, screw the Dodgers/Cubs/Yankees". It's not like the Lester to the Cubs situation, where there was the pre-existing relationship
The sooner people allow themselves not to worry about players that will have no impact on the roster in two years, the easier this will be for them. I would much rather Lopez pitch great and they lose than for him to have done horrible with bad velocity and they sneak out a win.
It is kind of funny that Hahn and company thought the culture of this team was so great that Manny would want to re-sign here if he was on this particular team. Sometimes I wonder if the front office has a grasp on reality