I would really like to believe so.
I'm fairly confident about this. Several weeks ago, Manny said publicly that it's just not working out with Wily Mo. I believe at that time, Manny figured Jimbo would be pulling the plug on the experiment. I think Manny has been disappointed and surprised that that hasn't happened.
The fact that Wily Mo is still on the team says to me Jimbo is pushing for the playing time he's getting. Jimbo could get rid of Wily Mo any time he wants to, but he doesn't do it. I have little doubt that he's the driving force behind Manny continuing to play the guy.