When he starts to fail, I will agree it is time to move on. As you say every manager has a shelf life. What frustrates me is we are underperforming at the moment and certain players do not seem to be buying into the club philosophy.
Jim’s teams have always been greater than the sum of the parts, this team is less than the sum. I am concerned that players are being brought in that aren’t his choice and he is being left to deal with it.