No.823
for now no, the entire reason this current system exists is because sole leaders in the past either ran out of steam or diverged from what /leftypol/ was, a la oldBO ,space_ and to a lesser extent d0llars, and there was no way to reliably hand off power without a split. whatever short term stability it may buy, it will long term fall apart and likely make another split.
not to say that any of the proposed are bad candidates mind, just that I don't believe anyone can really overcome the fate of being burnt out. its somewhat inherent to the job.