Has he been perfect, no, but people complain that we can't get our facilities up to standards with big public schools with twice the enrollment and donors that have wealth that makes Lally look like a homeless man by comparison, for what we are dealing with in terms of funding ability, we have done about as well as we can.
the 2 sports teams that have "fallen off" in Men's BBall and Lax are both largely the fault of a legendary coach, on the level that you can't really fire them, just "ask them to retire" staying on for too long and leaving the program in a bad state, the chancellor is not really the problem there.
As for the rankings, they incorporate so much more stuff than they used too, and most of it is completely irrelevant to the average person, and to be honest have always been a hot mess and using rankings of the overall school as an end all be all is a bad idea anyways.
for example, if I went solely by rankings, I could be somewhere much higher ranked than Syracuse, but I am in the best place in the world for my major, so I don't care.