Nah.
So long as JR refuses to make massive investment as in R&D, analytics and farm development, it doesn't matter who is in charge. We've got other teams with literally 4-5 times the employees dedicated to these areas. You can't win with a skeleton crew in critical infrastructure.
And JR micromanaging things compounds the problem.
A new GM is just rearranging the chairs on the deck of the Titanic.