The Port of Cleveland has seen better days. So has shipping on the Great Lakes.
After the failure of many rust-belt industries that once relied on it for iron ore from the Lakehead, the port needs ship traffic. It developed the Rock 'n' Roll Hall of Fame as a tourist attraction and explored container traffic, "heavy lifts" and cold storage. Attempts to start a ferry service to Port Stanley have stalled because the Ontario port is full of silt.
Cleveland also wants to redevelop its portlands, but traffic on the St. Lawrence Seaway and the Great Lakes is at half its capacity.
This globalization infrastructure is in dire need of attention. The dramatic drop in traffic indicates how important global trade is to the Great Lakes. Any economic stimulus would be better applied to transportation logistics and better border connectivity than salvaging the ailing auto industry.
The turnaround of any shrinking city usual concerns a re-orientation of the downtown relative to the dominant waterway. I think someone from Pittsburgh described the latest renaissance as turning to face the rivers, instead of backing into them and dumping waste. You think that now is a strange time to embrace globalization, but the localism movement is (ironically) dependent upon better global integration.