It's those two pretty much were the last mayors in the last 40 years, Dennis Archer was in there between them for 8 years and realized the whole city government was corrupt and fuckt and left after two terms. Kwame would still be in office if he was allowed to run, Dumbass residents of Detroit would have voted for him, even if he was still in jail.
BTW, Coleman Young became the Mayor of Detroit in 1974, so i think that qualifies as 'decades' for the corrupt behavior, Look at the history of the city and you'll see Coleman pretty much drove the whites out of Detroit and started the 'entitlement' beliefs in the city. He just got lucky that Feds didn't have todays technology, or he would have been in jail until he died.
And I agree on allowing the city to go bankrupt and fix the fiscal model.